We're dividing 51257795 by 99 
The aim is to understand the frequency of 99 in 51257795.

Moving on to step 1:
When dividing 5 by 99, we get 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 99

Let's proceed to step 2:
99 goes into 51 0 times with a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 51 after subtracting 0 from 51.
Grab the next digit (2) from the dividend, add it to 51, then carry on: 512 / 99

Going ahead to step 3:
When dividing 512 by 99, we get 5 with a remainder of 17.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtracting 495 from 512 leaves us with 17.
Bring next digit (5) of the dividend behind the 17 and repeat the process: 175 / 99

Going ahead to step 4:
175 divided by 99 is 1 with a remainder of 76.
Use 1 as the next digit of our solution. 
Result so far: 51.0
If we take 99 away from 175, we end up with 76.
Grab the next digit (7) from the dividend, add it to 76, then carry on: 767 / 99

Going ahead to step 5:
The number 99 fits into 767 7 times, leaving a remainder of 74.
Use 7 as the next digit of our solution. 
Result so far: 517.0
If we subtract 693 from 767, we get 74.
Grab the next digit (7) from the dividend, add it to 74, then carry on: 747 / 99

Let's proceed to step 6:
99 goes into 747 7 times with a remainder of 54.
Use 7 as the next digit of our solution. 
Result so far: 5177.0
Subtracting 693 from 747 leaves us with 54.
Take the next digit (9) from the dividend and append it to 54, then repeat: 549 / 99

On to step 7:
99 can be fit into 549 5 times, resulting in a remainder of 54.
Record the quotient 5 as the next digit in the result. 
Result so far: 51775.0
If we subtract 495 from 549, we get 54.
Append the next digit (5) from the dividend to 54 and continue with: 545 / 99

Let's proceed to step 8:
If we divide 545 by 99, we get 5 and a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 517755.0
If we take 495 away from 545, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 9:
500 divided by 99 is 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 517755.5
If we subtract 495 from 500, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 10:
The number 99 fits into 50 0 times, leaving a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 517755.5
The remainder is 50 after subtracting 0 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 11:
99 can be fit into 500 5 times, resulting in a remainder of 5.
The next digit of our result is 5. 
Result so far: 517755.505
If we subtract 495 from 500, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 12:
If we divide 50 by 99, we get 0 and a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 517755.505
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 13:
If we divide 500 by 99, we get 5 and a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 517755.50505
If we take 495 away from 500, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 14:
The number 99 fits into 50 0 times, leaving a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 517755.50505
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 15:
500 divided by 99 is 5 with a remainder of 5.
The next digit of our result is 5. 
Result so far: 517755.5050505
If we take 495 away from 500, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 16:
50 divided by 99 is 0 with a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 517755.5050505
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final result is 517755.5050505 with a remainder of 5e-08.