We look at the division of 831248 by 99 
We want to divide 831248 by 99.

Going ahead to step 1:
99 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (3) from the dividend to 8 and continue with: 83 / 99

Advancing to step 2:
99 can be fit into 83 0 times, resulting in a remainder of 83.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 83 to get 83.
Append the next digit (1) from the dividend to 83 and continue with: 831 / 99

On to step 3:
99 can be fit into 831 8 times, resulting in a remainder of 39.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we take 792 away from 831, we end up with 39.
Include the next digit (2) from the dividend after 39, then repeat: 392 / 99

Advancing to step 4:
If we divide 392 by 99, we get 3 and a remainder of 95.
Put 3 as the next digit of the answer. 
Result so far: 83.0
If we subtract 297 from 392, we get 95.
Fetch the next digit (4) from the dividend, attach it to 95 and continue: 954 / 99

Going ahead to step 5:
If we divide 954 by 99, we get 9 and a remainder of 63.
The next digit of our result is 9. 
Result so far: 839.0
Subtract 891 from 954 to get 63.
Include the next digit (8) from the dividend after 63, then repeat: 638 / 99

Moving on to step 6:
When dividing 638 by 99, we get 6 with a remainder of 44.
Put 6 as the next digit of the answer. 
Result so far: 8396.0
Deduct 594 from 638 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 7:
The number 99 fits into 440 4 times, leaving a remainder of 44.
Put 4 as the next digit of the answer. 
Result so far: 8396.4
Deduct 396 from 440 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 8:
440 divided by 99 is 4 with a remainder of 44.
Use 4 as the next digit of our solution. 
Result so far: 8396.44
If we take 396 away from 440, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

The final result is 8396.44 with a remainder of 0.044.