Let's divide 392960 by 99
The aim is to understand the frequency of 99 in 392960.

Advancing to step 1:
3 divided by 99 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 99

On to step 2:
The number 99 fits into 39 0 times, leaving a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 39 leaves us with 39.
Grab the next digit (2) from the dividend, add it to 39, then carry on: 392 / 99

Advancing to step 3:
99 can be fit into 392 3 times, resulting in a remainder of 95.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtract 297 from 392 to get 95.
Append the next digit (9) from the dividend to 95 and continue with: 959 / 99

Moving on to step 4:
99 goes into 959 9 times with a remainder of 68.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
If we subtract 891 from 959, we get 68.
Fetch the next digit (6) from the dividend, attach it to 68 and continue: 686 / 99

Let's proceed to step 5:
If we divide 686 by 99, we get 6 and a remainder of 92.
Write down 6 as next digit of the result. 
Result so far: 396.0
If we take 594 away from 686, we end up with 92.
Take the next digit (0) from the dividend and append it to 92, then repeat: 920 / 99

Step 6:
920 divided by 99 is 9 with a remainder of 29.
The number 9 becomes the next digit in our result. 
Result so far: 3969.0
Subtract 891 from 920 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Let's proceed to step 7:
290 divided by 99 is 2 with a remainder of 92.
The next digit of our result is 2. 
Result so far: 3969.2
Subtract 198 from 290 to get 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

On to step 8:
99 goes into 920 9 times with a remainder of 29.
Put 9 as the next digit of the answer. 
Result so far: 3969.29
If we take 891 away from 920, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Let's proceed to step 9:
The number 99 fits into 290 2 times, leaving a remainder of 92.
Write down 2 as next digit of the result. 
Result so far: 3969.292
If we take 198 away from 290, we end up with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Going ahead to step 10:
99 can be fit into 920 9 times, resulting in a remainder of 29.
Put 9 as the next digit of the answer. 
Result so far: 3969.2929
If we subtract 891 from 920, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 11:
When dividing 290 by 99, we get 2 with a remainder of 92.
Record the quotient 2 as the next digit in the result. 
Result so far: 3969.29292
Deduct 198 from 290 and we're left with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Moving on to step 12:
99 can be fit into 920 9 times, resulting in a remainder of 29.
The number 9 becomes the next digit in our result. 
Result so far: 3969.292929
The remainder is 29 after subtracting 891 from 920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 13:
The number 99 fits into 290 2 times, leaving a remainder of 92.
The next digit of our result is 2. 
Result so far: 3969.2929292
If we subtract 198 from 290, we get 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Going ahead to step 14:
When dividing 920 by 99, we get 9 with a remainder of 29.
Put 9 as the next digit of the answer. 
Result so far: 3969.29292929
Deduct 891 from 920 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Our division results in 3969.29292929 with a remaining 2.9e-08.