99729 ÷ 5 = 19945 R4
Let's divide 99729 by 5.

Step 1:
5 goes into 9 1 times with a remainder of 4.
Write down 1 as next digit of of the result. 
Result so far: 1
Subtract 5 from 9 to get 4.
Bring next digit (9) of the dividend behind the 4 and repeat the process: 49 / 5

Step 2:
5 goes into 49 9 times with a remainder of 4.
Write down 9 as next digit of of the result. 
Result so far: 19
Subtract 45 from 49 to get 4.
Bring next digit (7) of the dividend behind the 4 and repeat the process: 47 / 5

Step 3:
5 goes into 47 9 times with a remainder of 2.
Write down 9 as next digit of of the result. 
Result so far: 199
Subtract 45 from 47 to get 2.
Bring next digit (2) of the dividend behind the 2 and repeat the process: 22 / 5

Step 4:
5 goes into 22 4 times with a remainder of 2.
Write down 4 as next digit of of the result. 
Result so far: 1994
Subtract 20 from 22 to get 2.
Bring next digit (9) of the dividend behind the 2 and repeat the process: 29 / 5

Step 5:
5 goes into 29 5 times with a remainder of 4.
Write down 5 as next digit of of the result. 
Result so far: 19945
Subtract 25 from 29 to get 4.

The final result is 19945 with a remainder of 4.