We look at the division of 255169 by 99 
The aim is to understand the frequency of 99 in 255169.

Moving on to step 1:
If we divide 2 by 99, we get 0 and a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 99

Moving on to step 2:
99 goes into 25 0 times with a remainder of 25.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 25, we end up with 25.
Bring next digit (5) of the dividend behind the 25 and repeat the process: 255 / 99

Moving on to step 3:
99 goes into 255 2 times with a remainder of 57.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 198 from 255 and we're left with 57.
Append the next digit (1) from the dividend to 57 and continue with: 571 / 99

Going ahead to step 4:
If we divide 571 by 99, we get 5 and a remainder of 76.
Use 5 as the next digit of our solution. 
Result so far: 25.0
Subtracting 495 from 571 leaves us with 76.
Fetch the next digit (6) from the dividend, attach it to 76 and continue: 766 / 99

Advancing to step 5:
99 goes into 766 7 times with a remainder of 73.
Use 7 as the next digit of our solution. 
Result so far: 257.0
The remainder is 73 after subtracting 693 from 766.
Grab the next digit (9) from the dividend, add it to 73, then carry on: 739 / 99

On to step 6:
When dividing 739 by 99, we get 7 with a remainder of 46.
The number 7 becomes the next digit in our result. 
Result so far: 2577.0
The remainder is 46 after subtracting 693 from 739.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 7:
99 goes into 460 4 times with a remainder of 64.
The number 4 becomes the next digit in our result. 
Result so far: 2577.4
Deduct 396 from 460 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 8:
The number 99 fits into 640 6 times, leaving a remainder of 46.
Record the quotient 6 as the next digit in the result. 
Result so far: 2577.46
Deduct 594 from 640 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 9:
99 can be fit into 460 4 times, resulting in a remainder of 64.
Record the quotient 4 as the next digit in the result. 
Result so far: 2577.464
Subtract 396 from 460 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 10:
When dividing 640 by 99, we get 6 with a remainder of 46.
The next digit of our result is 6. 
Result so far: 2577.4646
If we subtract 594 from 640, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 11:
If we divide 460 by 99, we get 4 and a remainder of 64.
Write down 4 as next digit of the result. 
Result so far: 2577.46464
Deduct 396 from 460 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 12:
The number 99 fits into 640 6 times, leaving a remainder of 46.
Record the quotient 6 as the next digit in the result. 
Result so far: 2577.464646
Deduct 594 from 640 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 13:
If we divide 460 by 99, we get 4 and a remainder of 64.
Write down 4 as next digit of the result. 
Result so far: 2577.4646464
If we subtract 396 from 460, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 14:
640 divided by 99 is 6 with a remainder of 46.
The next digit of our result is 6. 
Result so far: 2577.46464646
If we subtract 594 from 640, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

The final outcome is 2577.46464646, with a leftover of 4.6e-08.