915964 divided by 99 
The aim is to understand the frequency of 99 in 915964.

On to step 1:
If we divide 9 by 99, we get 0 and a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 99

Let's proceed to step 2:
The number 99 fits into 91 0 times, leaving a remainder of 91.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 91 after subtracting 0 from 91.
Take the next digit (5) from the dividend and append it to 91, then repeat: 915 / 99

Advancing to step 3:
If we divide 915 by 99, we get 9 and a remainder of 24.
The next digit of our result is 9. 
Result so far: 9.0
The remainder is 24 after subtracting 891 from 915.
Append the next digit (9) from the dividend to 24 and continue with: 249 / 99

Going ahead to step 4:
249 divided by 99 is 2 with a remainder of 51.
The next digit of our result is 2. 
Result so far: 92.0
Deduct 198 from 249 and we're left with 51.
Fetch the next digit (6) from the dividend, attach it to 51 and continue: 516 / 99

Going ahead to step 5:
516 divided by 99 is 5 with a remainder of 21.
Record the quotient 5 as the next digit in the result. 
Result so far: 925.0
Deduct 495 from 516 and we're left with 21.
Grab the next digit (4) from the dividend, add it to 21, then carry on: 214 / 99

Advancing to step 6:
99 can be fit into 214 2 times, resulting in a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 9252.0
Subtract 198 from 214 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 7:
99 can be fit into 160 1 times, resulting in a remainder of 61.
The number 1 becomes the next digit in our result. 
Result so far: 9252.1
If we subtract 99 from 160, we get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Going ahead to step 8:
The number 99 fits into 610 6 times, leaving a remainder of 16.
The number 6 becomes the next digit in our result. 
Result so far: 9252.16
If we take 594 away from 610, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 9:
160 divided by 99 is 1 with a remainder of 61.
Record the quotient 1 as the next digit in the result. 
Result so far: 9252.161
Subtract 99 from 160 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Step 10:
When dividing 610 by 99, we get 6 with a remainder of 16.
The next digit of our result is 6. 
Result so far: 9252.1616
If we subtract 594 from 610, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 11:
The number 99 fits into 160 1 times, leaving a remainder of 61.
Put 1 as the next digit of the answer. 
Result so far: 9252.16161
Deduct 99 from 160 and we're left with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Let's proceed to step 12:
When dividing 610 by 99, we get 6 with a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 9252.161616
Deduct 594 from 610 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 13:
If we divide 160 by 99, we get 1 and a remainder of 61.
Record the quotient 1 as the next digit in the result. 
Result so far: 9252.1616161
Subtracting 99 from 160 leaves us with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Step 14:
If we divide 610 by 99, we get 6 and a remainder of 16.
The next digit of our result is 6. 
Result so far: 9252.16161616
Subtracting 594 from 610 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

In conclusion, the division gives 9252.16161616 with a balance of 1.6e-08.