We're dividing 358879 by 99 
The aim is to understand the frequency of 99 in 358879.

Moving on to step 1:
99 goes into 3 0 times with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 99

Going ahead to step 2:
99 can be fit into 35 0 times, resulting in a remainder of 35.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 35, we get 35.
Append the next digit (8) from the dividend to 35 and continue with: 358 / 99

On to step 3:
When dividing 358 by 99, we get 3 with a remainder of 61.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Deduct 297 from 358 and we're left with 61.
Take the next digit (8) from the dividend and append it to 61, then repeat: 618 / 99

Advancing to step 4:
618 divided by 99 is 6 with a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 36.0
If we subtract 594 from 618, we get 24.
Include the next digit (7) from the dividend after 24, then repeat: 247 / 99

Going ahead to step 5:
99 can be fit into 247 2 times, resulting in a remainder of 49.
Use 2 as the next digit of our solution. 
Result so far: 362.0
Subtract 198 from 247 to get 49.
Grab the next digit (9) from the dividend, add it to 49, then carry on: 499 / 99

Step 6:
99 can be fit into 499 5 times, resulting in a remainder of 4.
Write down 5 as next digit of the result. 
Result so far: 3625.0
Deduct 495 from 499 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 7:
40 divided by 99 is 0 with a remainder of 40.
The next digit of our result is 0. 
Result so far: 3625.0
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 8:
99 goes into 400 4 times with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 3625.04
If we subtract 396 from 400, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 9:
99 goes into 40 0 times with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 3625.04
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 10:
When dividing 400 by 99, we get 4 with a remainder of 4.
The next digit of our result is 4. 
Result so far: 3625.0404
If we take 396 away from 400, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 11:
When dividing 40 by 99, we get 0 with a remainder of 40.
The next digit of our result is 0. 
Result so far: 3625.0404
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 12:
The number 99 fits into 400 4 times, leaving a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 3625.040404
The remainder is 4 after subtracting 396 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 13:
When dividing 40 by 99, we get 0 with a remainder of 40.
The next digit of our result is 0. 
Result so far: 3625.040404
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 14:
If we divide 400 by 99, we get 4 and a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 3625.04040404
If we subtract 396 from 400, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final result is 3625.04040404 with a remainder of 4e-09.