When you need to divide a large number, use the multi-step process
of long
division. Here are two examples of long division with
a remainder in the answer.
Example 1: 
You want to find how many will be in each group if 29
is divided into 4 groups.
First set up the problem like this:

Ask yourself how many times 4 can
divide into 29. 4
divides into 29 at least seven
times, so write 7 above the 9
in the one’s place.

Now multiply 7 by 4.
7 × 4
= 28, and write the 28 under the 29.

Now subtract 28 from 29. 29
– 28 = 1, so write the
1 under the 8 in the one’s
place. You have a remainder of 1
because when 4 is divided into 1,
it does not make a whole number.

Now write the remainder (r) next to the 7.

