Question

How do you do long division

Answer 1

To do long division is to put the number you want to be divided by, put that in side the box and the number that is dividing the number is on the outside and that is called the divisor.

Answer 2

Divide that by the divisor, ignoring the remainder!
Put the whole number result above the line (part of the answer)
Multiply that whole number result by the divisor.
Put that below what you just worked on. 
Subtract "Bring down" the next digit, to create a new value to work on Repeat, using the new value. Hope this helped!