We divide 729830 by 99
The aim is to understand the frequency of 99 in 729830.

On to step 1:
When dividing 7 by 99, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Bring next digit (2) of the dividend behind the 7 and repeat the process: 72 / 99

Moving on to step 2:
When dividing 72 by 99, we get 0 with a remainder of 72.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 72, we end up with 72.
Bring next digit (9) of the dividend behind the 72 and repeat the process: 729 / 99

Step 3:
99 can be fit into 729 7 times, resulting in a remainder of 36.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we take 693 away from 729, we end up with 36.
Bring next digit (8) of the dividend behind the 36 and repeat the process: 368 / 99

Advancing to step 4:
If we divide 368 by 99, we get 3 and a remainder of 71.
Use 3 as the next digit of our solution. 
Result so far: 73.0
Subtracting 297 from 368 leaves us with 71.
Fetch the next digit (3) from the dividend, attach it to 71 and continue: 713 / 99

On to step 5:
When dividing 713 by 99, we get 7 with a remainder of 20.
The next digit of our result is 7. 
Result so far: 737.0
The remainder is 20 after subtracting 693 from 713.
Grab the next digit (0) from the dividend, add it to 20, then carry on: 200 / 99

Advancing to step 6:
99 can be fit into 200 2 times, resulting in a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 7372.0
Subtract 198 from 200 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 7:
20 divided by 99 is 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 7372.0
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 8:
If we divide 200 by 99, we get 2 and a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 7372.02
Subtract 198 from 200 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 9:
99 goes into 20 0 times with a remainder of 20.
The next digit of our result is 0. 
Result so far: 7372.02
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 10:
When dividing 200 by 99, we get 2 with a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 7372.0202
Subtract 198 from 200 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 11:
99 goes into 20 0 times with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 7372.0202
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 12:
If we divide 200 by 99, we get 2 and a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 7372.020202
Subtracting 198 from 200 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 13:
The number 99 fits into 20 0 times, leaving a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 7372.020202
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 14:
99 can be fit into 200 2 times, resulting in a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 7372.02020202
Deduct 198 from 200 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

After the division, we end up with 7372.02020202 and a remainder of 2e-09.