We divide 91958 by 99
The aim is to understand the frequency of 99 in 91958.

Advancing to step 1:
99 can be fit into 9 0 times, resulting in a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 99

Going ahead to step 2:
When dividing 91 by 99, we get 0 with a remainder of 91.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 91, we get 91.
Append the next digit (9) from the dividend to 91 and continue with: 919 / 99

Going ahead to step 3:
99 can be fit into 919 9 times, resulting in a remainder of 28.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we take 891 away from 919, we end up with 28.
Grab the next digit (5) from the dividend, add it to 28, then carry on: 285 / 99

On to step 4:
99 goes into 285 2 times with a remainder of 87.
The number 2 becomes the next digit in our result. 
Result so far: 92.0
Deduct 198 from 285 and we're left with 87.
Append the next digit (8) from the dividend to 87 and continue with: 878 / 99

Let's proceed to step 5:
99 goes into 878 8 times with a remainder of 86.
Use 8 as the next digit of our solution. 
Result so far: 928.0
Subtract 792 from 878 to get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Moving on to step 6:
99 goes into 860 8 times with a remainder of 68.
Put 8 as the next digit of the answer. 
Result so far: 928.8
The remainder is 68 after subtracting 792 from 860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 7:
When dividing 680 by 99, we get 6 with a remainder of 86.
Write down 6 as next digit of the result. 
Result so far: 928.86
The remainder is 86 after subtracting 594 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

On to step 8:
860 divided by 99 is 8 with a remainder of 68.
Use 8 as the next digit of our solution. 
Result so far: 928.868
Subtracting 792 from 860 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 9:
99 goes into 680 6 times with a remainder of 86.
Put 6 as the next digit of the answer. 
Result so far: 928.8686
Deduct 594 from 680 and we're left with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Going ahead to step 10:
When dividing 860 by 99, we get 8 with a remainder of 68.
Record the quotient 8 as the next digit in the result. 
Result so far: 928.86868
If we subtract 792 from 860, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 11:
The number 99 fits into 680 6 times, leaving a remainder of 86.
Record the quotient 6 as the next digit in the result. 
Result so far: 928.868686
The remainder is 86 after subtracting 594 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Advancing to step 12:
99 goes into 860 8 times with a remainder of 68.
Use 8 as the next digit of our solution. 
Result so far: 928.8686868
If we take 792 away from 860, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 13:
99 can be fit into 680 6 times, resulting in a remainder of 86.
Use 6 as the next digit of our solution. 
Result so far: 928.86868686
If we subtract 594 from 680, we get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

In conclusion, the division gives 928.86868686 with a balance of 8.6e-08.