78249 ÷ 5 = 15649 R4
Alright, let's work through the division of 78249 by 5 step by step.

Step 1:
5 goes into 7 1 times with a remainder of 2.
Write down 1 as next digit of of the result. 
Result so far: 1
Subtract 5 from 7 to get 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 5

Step 2:
5 goes into 28 5 times with a remainder of 3.
Write down 5 as next digit of of the result. 
Result so far: 15
Subtract 25 from 28 to get 3.
Bring next digit (2) of the dividend behind the 3 and repeat the process: 32 / 5

Step 3:
5 goes into 32 6 times with a remainder of 2.
Write down 6 as next digit of of the result. 
Result so far: 156
Subtract 30 from 32 to get 2.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 5

Step 4:
5 goes into 24 4 times with a remainder of 4.
Write down 4 as next digit of of the result. 
Result so far: 1564
Subtract 20 from 24 to get 4.
Bring next digit (9) of the dividend behind the 4 and repeat the process: 49 / 5

Step 5:
5 goes into 49 9 times with a remainder of 4.
Write down 9 as next digit of of the result. 
Result so far: 15649
Subtract 45 from 49 to get 4.

The final result is 15649 with a remainder of 4.