831459 ÷ 99 
Let's see how many times 99 fits into 831459.

Let's proceed to step 1:
If we divide 8 by 99, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (3) of the dividend behind the 8 and repeat the process: 83 / 99

On to step 2:
99 can be fit into 83 0 times, resulting in a remainder of 83.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 83, we end up with 83.
Grab the next digit (1) from the dividend, add it to 83, then carry on: 831 / 99

Step 3:
99 can be fit into 831 8 times, resulting in a remainder of 39.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
The remainder is 39 after subtracting 792 from 831.
Grab the next digit (4) from the dividend, add it to 39, then carry on: 394 / 99

Moving on to step 4:
99 can be fit into 394 3 times, resulting in a remainder of 97.
Put 3 as the next digit of the answer. 
Result so far: 83.0
If we subtract 297 from 394, we get 97.
Grab the next digit (5) from the dividend, add it to 97, then carry on: 975 / 99

On to step 5:
The number 99 fits into 975 9 times, leaving a remainder of 84.
The next digit of our result is 9. 
Result so far: 839.0
Subtract 891 from 975 to get 84.
Grab the next digit (9) from the dividend, add it to 84, then carry on: 849 / 99

Moving on to step 6:
The number 99 fits into 849 8 times, leaving a remainder of 57.
The next digit of our result is 8. 
Result so far: 8398.0
Deduct 792 from 849 and we're left with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Step 7:
570 divided by 99 is 5 with a remainder of 75.
The next digit of our result is 5. 
Result so far: 8398.5
Subtracting 495 from 570 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Moving on to step 8:
750 divided by 99 is 7 with a remainder of 57.
Put 7 as the next digit of the answer. 
Result so far: 8398.57
Deduct 693 from 750 and we're left with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Advancing to step 9:
If we divide 570 by 99, we get 5 and a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 8398.575
Deduct 495 from 570 and we're left with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Going ahead to step 10:
The number 99 fits into 750 7 times, leaving a remainder of 57.
The next digit of our result is 7. 
Result so far: 8398.5757
If we subtract 693 from 750, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Advancing to step 11:
99 can be fit into 570 5 times, resulting in a remainder of 75.
The next digit of our result is 5. 
Result so far: 8398.57575
Subtract 495 from 570 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Moving on to step 12:
The number 99 fits into 750 7 times, leaving a remainder of 57.
The number 7 becomes the next digit in our result. 
Result so far: 8398.575757
Deduct 693 from 750 and we're left with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

On to step 13:
When dividing 570 by 99, we get 5 with a remainder of 75.
Put 5 as the next digit of the answer. 
Result so far: 8398.5757575
Subtracting 495 from 570 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Going ahead to step 14:
99 goes into 750 7 times with a remainder of 57.
Record the quotient 7 as the next digit in the result. 
Result so far: 8398.57575757
If we take 693 away from 750, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

The final outcome is 8398.57575757, with a leftover of 5.7e-08.