We're dividing 831313 by 99 
The aim is to understand the frequency of 99 in 831313.

Going ahead to step 1:
99 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 99

On to step 2:
The number 99 fits into 83 0 times, leaving a remainder of 83.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 83 after subtracting 0 from 83.
Include the next digit (1) from the dividend after 83, then repeat: 831 / 99

Advancing to step 3:
831 divided by 99 is 8 with a remainder of 39.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 792 from 831 leaves us with 39.
Bring next digit (3) of the dividend behind the 39 and repeat the process: 393 / 99

Going ahead to step 4:
99 can be fit into 393 3 times, resulting in a remainder of 96.
The number 3 becomes the next digit in our result. 
Result so far: 83.0
The remainder is 96 after subtracting 297 from 393.
Append the next digit (1) from the dividend to 96 and continue with: 961 / 99

Advancing to step 5:
99 goes into 961 9 times with a remainder of 70.
The number 9 becomes the next digit in our result. 
Result so far: 839.0
If we subtract 891 from 961, we get 70.
Fetch the next digit (3) from the dividend, attach it to 70 and continue: 703 / 99

Going ahead to step 6:
99 can be fit into 703 7 times, resulting in a remainder of 10.
Use 7 as the next digit of our solution. 
Result so far: 8397.0
If we subtract 693 from 703, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 7:
99 goes into 100 1 times with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 8397.1
Deduct 99 from 100 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 8:
The number 99 fits into 10 0 times, leaving a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 8397.1
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 9:
If we divide 100 by 99, we get 1 and a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 8397.101
Deduct 99 from 100 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 10:
99 can be fit into 10 0 times, resulting in a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 8397.101
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 11:
99 can be fit into 100 1 times, resulting in a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 8397.10101
If we take 99 away from 100, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 12:
If we divide 10 by 99, we get 0 and a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 8397.10101
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 13:
99 goes into 100 1 times with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 8397.1010101
Subtract 99 from 100 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 14:
If we divide 10 by 99, we get 0 and a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 8397.1010101
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final outcome is 8397.1010101, with a leftover of 1e-08.