78787 ÷ 4 = 19696 R3
Alright, let's work through the division of 78787 by 4 step by step.

Step 1:
4 goes into 7 1 times with a remainder of 3.
Write down 1 as next digit of of the result. 
Result so far: 1
Subtract 4 from 7 to get 3.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 4

Step 2:
4 goes into 38 9 times with a remainder of 2.
Write down 9 as next digit of of the result. 
Result so far: 19
Subtract 36 from 38 to get 2.
Bring next digit (7) of the dividend behind the 2 and repeat the process: 27 / 4

Step 3:
4 goes into 27 6 times with a remainder of 3.
Write down 6 as next digit of of the result. 
Result so far: 196
Subtract 24 from 27 to get 3.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 4

Step 4:
4 goes into 38 9 times with a remainder of 2.
Write down 9 as next digit of of the result. 
Result so far: 1969
Subtract 36 from 38 to get 2.
Bring next digit (7) of the dividend behind the 2 and repeat the process: 27 / 4

Step 5:
4 goes into 27 6 times with a remainder of 3.
Write down 6 as next digit of of the result. 
Result so far: 19696
Subtract 24 from 27 to get 3.

The final result is 19696 with a remainder of 3.