When we have a set of something that we are splitting up into groups, we divide. In this case, we are splitting up cookies into containers. We have \(\displaystyle 87\) cookies that we are dividing into containers. Each container holds \(\displaystyle 7\) cookies, so we divide \(\displaystyle 87\) by \(\displaystyle 7\) to find out how many containers we can fill. We will let \(\displaystyle c\) represent the number of containers that we can fill. 

\(\displaystyle 87\div7=c\)

\(\displaystyle \frac{\begin{array}[b]{r} \ 12\\ 7{\overline{\smash{)}87}}\\ -\ 7\smash{\color{Red}\downarrow}\end{array}}{ \ \ \ \space \frac{\begin{array}[b]{r}1{\color{Red} 7\ \ }\\ -\ \ \ 14\ \ \end{array}}{ \ \ \ \space} }\)

                      \(\displaystyle 3\)

We drop the remainder of \(\displaystyle 3\) because the question asks how many containers we can fill completely. 

When we have a set of something that we are splitting up into groups, we divide. In this case, we are splitting up cookies into containers. We have \(\displaystyle 91\) cookies that we are dividing into containers. Each container holds \(\displaystyle 4\) cookies, so we divide \(\displaystyle 91\) by \(\displaystyle 4\) to find out how many containers we can fill. We will let \(\displaystyle c\) represent the number of containers that we can fill. 

\(\displaystyle 91\div4=c\)

\(\displaystyle \frac{\begin{array}[b]{r} \ 22\\ 4{\overline{\smash{)}91}}\\ -\ 8\smash{\color{Red}\downarrow}\end{array}}{ \ \ \ \space \frac{\begin{array}[b]{r}1{\color{Red} 1\ \ }\\ -\ \ \ 8\ \ \end{array}}{ \ \ \ \space} }\)

                   \(\displaystyle 3\)

We drop the remainder of \(\displaystyle 3\) because the question asks how many containers we can fill completely. 

\(\displaystyle 3{\overline{\smash{)}27}}\)

To solve this division problem, we can think of it as a missing factor problem. 

Think: What times \(\displaystyle 3\) equals \(\displaystyle 27?\)

\(\displaystyle 3\times9=27\) 

\(\displaystyle 3{\overline{\smash{)}30}}\)

To solve this division problem, we can think of it as a missing factor problem. 

Think: What times \(\displaystyle 3\) equals \(\displaystyle 30?\)

\(\displaystyle 3\times10=30\) 

\(\displaystyle 3{\overline{\smash{)}24}}\)

To solve this division problem, we can think of it as a missing factor problem. 

Think: What times \(\displaystyle 3\) equals \(\displaystyle 24?\)

\(\displaystyle 3\times8=24\) 

\(\displaystyle 4{\overline{\smash{)}32}}\)

To solve this division problem, we can think of it as a missing factor problem. 

Think: What times \(\displaystyle 4\) equals \(\displaystyle 32?\)

\(\displaystyle 4\times8=32\) 

\(\displaystyle 4{\overline{\smash{)}44}}\)

To solve this division problem, we can think of it as a missing factor problem. 

Think: What times \(\displaystyle 4\) equals \(\displaystyle 44?\)

\(\displaystyle 4\times11=44\) 

\(\displaystyle 4{\overline{\smash{)}16}}\)

To solve this division problem, we can think of it as a missing factor problem. 

Think: What times \(\displaystyle 4\) equals \(\displaystyle 16?\)

\(\displaystyle 4\times4=16\) 

\(\displaystyle 4{\overline{\smash{)}24}}\)

To solve this division problem, we can think of it as a missing factor problem. 

Think: What times \(\displaystyle 4\) equals \(\displaystyle 24?\)

\(\displaystyle 4\times6=24\) 

\(\displaystyle 2{\overline{\smash{)}16}}\)

To solve this division problem, we can think of it as a missing factor problem. 

Think: What times \(\displaystyle 2\) equals \(\displaystyle 16?\)

\(\displaystyle 2\times8=16\)