518119 divided by 99 
The aim is to understand the frequency of 99 in 518119.

On to step 1:
99 goes into 5 0 times with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 99

Going ahead to step 2:
51 divided by 99 is 0 with a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 51 after subtracting 0 from 51.
Bring next digit (8) of the dividend behind the 51 and repeat the process: 518 / 99

Let's proceed to step 3:
The number 99 fits into 518 5 times, leaving a remainder of 23.
Put 5 as the next digit of the answer. 
Result so far: 5.0
The remainder is 23 after subtracting 495 from 518.
Append the next digit (1) from the dividend to 23 and continue with: 231 / 99

Going ahead to step 4:
The number 99 fits into 231 2 times, leaving a remainder of 33.
Write down 2 as next digit of the result. 
Result so far: 52.0
Subtract 198 from 231 to get 33.
Append the next digit (1) from the dividend to 33 and continue with: 331 / 99

On to step 5:
331 divided by 99 is 3 with a remainder of 34.
Record the quotient 3 as the next digit in the result. 
Result so far: 523.0
Deduct 297 from 331 and we're left with 34.
Fetch the next digit (9) from the dividend, attach it to 34 and continue: 349 / 99

Step 6:
99 goes into 349 3 times with a remainder of 52.
Write down 3 as next digit of the result. 
Result so far: 5233.0
Subtracting 297 from 349 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 7:
The number 99 fits into 520 5 times, leaving a remainder of 25.
The next digit of our result is 5. 
Result so far: 5233.5
If we subtract 495 from 520, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 8:
The number 99 fits into 250 2 times, leaving a remainder of 52.
Put 2 as the next digit of the answer. 
Result so far: 5233.52
If we subtract 198 from 250, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 9:
When dividing 520 by 99, we get 5 with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 5233.525
If we subtract 495 from 520, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 10:
99 can be fit into 250 2 times, resulting in a remainder of 52.
Put 2 as the next digit of the answer. 
Result so far: 5233.5252
If we subtract 198 from 250, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 11:
When dividing 520 by 99, we get 5 with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 5233.52525
Subtract 495 from 520 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 12:
250 divided by 99 is 2 with a remainder of 52.
Write down 2 as next digit of the result. 
Result so far: 5233.525252
Deduct 198 from 250 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 13:
99 goes into 520 5 times with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 5233.5252525
Subtracting 495 from 520 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 14:
250 divided by 99 is 2 with a remainder of 52.
The next digit of our result is 2. 
Result so far: 5233.52525252
Deduct 198 from 250 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

The final outcome is 5233.52525252, with a leftover of 5.2e-08.