We look at the division of 304629 by 99 
The aim is to understand the frequency of 99 in 304629.

Step 1:
When dividing 3 by 99, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 99

Going ahead to step 2:
If we divide 30 by 99, we get 0 and a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 30, we get 30.
Fetch the next digit (4) from the dividend, attach it to 30 and continue: 304 / 99

Advancing to step 3:
The number 99 fits into 304 3 times, leaving a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 7 after subtracting 297 from 304.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 99

Advancing to step 4:
99 goes into 76 0 times with a remainder of 76.
The number 0 becomes the next digit in our result. 
Result so far: 30.0
Subtracting 0 from 76 leaves us with 76.
Grab the next digit (2) from the dividend, add it to 76, then carry on: 762 / 99

Let's proceed to step 5:
The number 99 fits into 762 7 times, leaving a remainder of 69.
Record the quotient 7 as the next digit in the result. 
Result so far: 307.0
The remainder is 69 after subtracting 693 from 762.
Append the next digit (9) from the dividend to 69 and continue with: 699 / 99

Going ahead to step 6:
When dividing 699 by 99, we get 7 with a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 3077.0
If we take 693 away from 699, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 7:
60 divided by 99 is 0 with a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 3077.0
The remainder is 60 after subtracting 0 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 8:
600 divided by 99 is 6 with a remainder of 6.
The next digit of our result is 6. 
Result so far: 3077.06
The remainder is 6 after subtracting 594 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 9:
The number 99 fits into 60 0 times, leaving a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 3077.06
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 10:
The number 99 fits into 600 6 times, leaving a remainder of 6.
Put 6 as the next digit of the answer. 
Result so far: 3077.0606
If we subtract 594 from 600, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 11:
60 divided by 99 is 0 with a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 3077.0606
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 12:
600 divided by 99 is 6 with a remainder of 6.
Record the quotient 6 as the next digit in the result. 
Result so far: 3077.060606
Deduct 594 from 600 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 13:
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: 3077.060606
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 14:
The number 99 fits into 600 6 times, leaving a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 3077.06060606
Deduct 594 from 600 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Our division results in 3077.06060606 with a remaining 6e-09.