605655 ÷ 99 
The aim is to understand the frequency of 99 in 605655.

Moving on to step 1:
6 divided by 99 is 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (0) from the dividend and append it to 6, then repeat: 60 / 99

Advancing to step 2:
99 can be fit into 60 0 times, resulting in a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 60 and we're left with 60.
Bring next digit (5) of the dividend behind the 60 and repeat the process: 605 / 99

Going ahead to step 3:
605 divided by 99 is 6 with a remainder of 11.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Deduct 594 from 605 and we're left with 11.
Take the next digit (6) from the dividend and append it to 11, then repeat: 116 / 99

On to step 4:
99 goes into 116 1 times with a remainder of 17.
The number 1 becomes the next digit in our result. 
Result so far: 61.0
Deduct 99 from 116 and we're left with 17.
Fetch the next digit (5) from the dividend, attach it to 17 and continue: 175 / 99

Going ahead to step 5:
The number 99 fits into 175 1 times, leaving a remainder of 76.
The number 1 becomes the next digit in our result. 
Result so far: 611.0
The remainder is 76 after subtracting 99 from 175.
Include the next digit (5) from the dividend after 76, then repeat: 765 / 99

On to step 6:
99 can be fit into 765 7 times, resulting in a remainder of 72.
Put 7 as the next digit of the answer. 
Result so far: 6117.0
Subtracting 693 from 765 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Going ahead to step 7:
The number 99 fits into 720 7 times, leaving a remainder of 27.
The next digit of our result is 7. 
Result so far: 6117.7
Deduct 693 from 720 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 8:
If we divide 270 by 99, we get 2 and a remainder of 72.
The number 2 becomes the next digit in our result. 
Result so far: 6117.72
Deduct 198 from 270 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Step 9:
99 goes into 720 7 times with a remainder of 27.
Use 7 as the next digit of our solution. 
Result so far: 6117.727
Deduct 693 from 720 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 10:
When dividing 270 by 99, we get 2 with a remainder of 72.
Put 2 as the next digit of the answer. 
Result so far: 6117.7272
Subtract 198 from 270 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 11:
720 divided by 99 is 7 with a remainder of 27.
Write down 7 as next digit of the result. 
Result so far: 6117.72727
Subtracting 693 from 720 leaves us with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 12:
99 can be fit into 270 2 times, resulting in a remainder of 72.
The number 2 becomes the next digit in our result. 
Result so far: 6117.727272
If we take 198 away from 270, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 13:
When dividing 720 by 99, we get 7 with a remainder of 27.
Put 7 as the next digit of the answer. 
Result so far: 6117.7272727
Subtract 693 from 720 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Advancing to step 14:
The number 99 fits into 270 2 times, leaving a remainder of 72.
Use 2 as the next digit of our solution. 
Result so far: 6117.72727272
Deduct 198 from 270 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

The final outcome is 6117.72727272, with a leftover of 7.2e-08.