We look at the division of 23953 by 99 
The aim is to understand the frequency of 99 in 23953.

Advancing to step 1:
The number 99 fits into 2 0 times, leaving a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 99

Going ahead to step 2:
When dividing 23 by 99, we get 0 with a remainder of 23.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 23 and we're left with 23.
Grab the next digit (9) from the dividend, add it to 23, then carry on: 239 / 99

Step 3:
99 goes into 239 2 times with a remainder of 41.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 41 after subtracting 198 from 239.
Bring next digit (5) of the dividend behind the 41 and repeat the process: 415 / 99

Step 4:
99 can be fit into 415 4 times, resulting in a remainder of 19.
The number 4 becomes the next digit in our result. 
Result so far: 24.0
Subtracting 396 from 415 leaves us with 19.
Bring next digit (3) of the dividend behind the 19 and repeat the process: 193 / 99

Step 5:
99 can be fit into 193 1 times, resulting in a remainder of 94.
Use 1 as the next digit of our solution. 
Result so far: 241.0
Subtract 99 from 193 to get 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Step 6:
If we divide 940 by 99, we get 9 and a remainder of 49.
Put 9 as the next digit of the answer. 
Result so far: 241.9
If we subtract 891 from 940, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

On to step 7:
When dividing 490 by 99, we get 4 with a remainder of 94.
The next digit of our result is 4. 
Result so far: 241.94
Deduct 396 from 490 and we're left with 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Let's proceed to step 8:
99 can be fit into 940 9 times, resulting in a remainder of 49.
Use 9 as the next digit of our solution. 
Result so far: 241.949
Subtracting 891 from 940 leaves us with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Advancing to step 9:
99 can be fit into 490 4 times, resulting in a remainder of 94.
Record the quotient 4 as the next digit in the result. 
Result so far: 241.9494
Subtract 396 from 490 to get 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Advancing to step 10:
99 can be fit into 940 9 times, resulting in a remainder of 49.
Record the quotient 9 as the next digit in the result. 
Result so far: 241.94949
Subtracting 891 from 940 leaves us with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Moving on to step 11:
When dividing 490 by 99, we get 4 with a remainder of 94.
The next digit of our result is 4. 
Result so far: 241.949494
Subtract 396 from 490 to get 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Going ahead to step 12:
When dividing 940 by 99, we get 9 with a remainder of 49.
Use 9 as the next digit of our solution. 
Result so far: 241.9494949
Subtracting 891 from 940 leaves us with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Step 13:
490 divided by 99 is 4 with a remainder of 94.
Put 4 as the next digit of the answer. 
Result so far: 241.94949494
Subtracting 396 from 490 leaves us with 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Our division results in 241.94949494 with a remaining 9.4e-08.