We're dividing 339502 by 99 
The aim is to understand the frequency of 99 in 339502.

On to step 1:
3 divided by 99 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (3) from the dividend, add it to 3, then carry on: 33 / 99

Step 2:
The number 99 fits into 33 0 times, leaving a remainder of 33.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 33 leaves us with 33.
Bring next digit (9) of the dividend behind the 33 and repeat the process: 339 / 99

Moving on to step 3:
When dividing 339 by 99, we get 3 with a remainder of 42.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 297 from 339, we get 42.
Grab the next digit (5) from the dividend, add it to 42, then carry on: 425 / 99

Step 4:
99 can be fit into 425 4 times, resulting in a remainder of 29.
The number 4 becomes the next digit in our result. 
Result so far: 34.0
If we subtract 396 from 425, we get 29.
Append the next digit (0) from the dividend to 29 and continue with: 290 / 99

Advancing to step 5:
99 goes into 290 2 times with a remainder of 92.
Use 2 as the next digit of our solution. 
Result so far: 342.0
Deduct 198 from 290 and we're left with 92.
Fetch the next digit (2) from the dividend, attach it to 92 and continue: 922 / 99

Going ahead to step 6:
The number 99 fits into 922 9 times, leaving a remainder of 31.
Put 9 as the next digit of the answer. 
Result so far: 3429.0
Subtract 891 from 922 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 7:
If we divide 310 by 99, we get 3 and a remainder of 13.
Put 3 as the next digit of the answer. 
Result so far: 3429.3
If we subtract 297 from 310, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 8:
99 goes into 130 1 times with a remainder of 31.
Use 1 as the next digit of our solution. 
Result so far: 3429.31
Deduct 99 from 130 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 9:
99 goes into 310 3 times with a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 3429.313
The remainder is 13 after subtracting 297 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 10:
99 goes into 130 1 times with a remainder of 31.
Use 1 as the next digit of our solution. 
Result so far: 3429.3131
Deduct 99 from 130 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 11:
310 divided by 99 is 3 with a remainder of 13.
The number 3 becomes the next digit in our result. 
Result so far: 3429.31313
Subtract 297 from 310 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 12:
When dividing 130 by 99, we get 1 with a remainder of 31.
Write down 1 as next digit of the result. 
Result so far: 3429.313131
Subtracting 99 from 130 leaves us with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 13:
99 goes into 310 3 times with a remainder of 13.
Write down 3 as next digit of the result. 
Result so far: 3429.3131313
Deduct 297 from 310 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 14:
When dividing 130 by 99, we get 1 with a remainder of 31.
Use 1 as the next digit of our solution. 
Result so far: 3429.31313131
If we take 99 away from 130, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

The final outcome is 3429.31313131, with a leftover of 3.1e-08.