79900 ÷ 5 = 15980 R0
No problem, we've got 79900 and 5 for the division.

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 (9) of the dividend behind the 2 and repeat the process: 29 / 5

Step 2:
5 goes into 29 5 times with a remainder of 4.
Write down 5 as next digit of of the result. 
Result so far: 15
Subtract 25 from 29 to get 4.
Bring next digit (9) of the dividend behind the 4 and repeat the process: 49 / 5

Step 3:
5 goes into 49 9 times with a remainder of 4.
Write down 9 as next digit of of the result. 
Result so far: 159
Subtract 45 from 49 to get 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 5

Step 4:
5 goes into 40 8 times with a remainder of 0.
Write down 8 as next digit of of the result. 
Result so far: 1598
Subtract 40 from 40 to get 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 5

Step 5:
5 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of of the result. 
Result so far: 15980
Subtract 0 from 0 to get 0.

The final result is 15980 with a remainder of 0.