We look at the division of 453594 by 99 
The aim is to understand the frequency of 99 in 453594.

Going ahead to step 1:
99 goes into 4 0 times with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 99

Let's proceed to step 2:
99 can be fit into 45 0 times, resulting in a remainder of 45.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 45 after subtracting 0 from 45.
Fetch the next digit (3) from the dividend, attach it to 45 and continue: 453 / 99

On to step 3:
99 goes into 453 4 times with a remainder of 57.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 396 from 453 and we're left with 57.
Bring next digit (5) of the dividend behind the 57 and repeat the process: 575 / 99

On to step 4:
When dividing 575 by 99, we get 5 with a remainder of 80.
Put 5 as the next digit of the answer. 
Result so far: 45.0
Subtracting 495 from 575 leaves us with 80.
Include the next digit (9) from the dividend after 80, then repeat: 809 / 99

Moving on to step 5:
99 goes into 809 8 times with a remainder of 17.
Put 8 as the next digit of the answer. 
Result so far: 458.0
Subtract 792 from 809 to get 17.
Grab the next digit (4) from the dividend, add it to 17, then carry on: 174 / 99

Step 6:
174 divided by 99 is 1 with a remainder of 75.
Record the quotient 1 as the next digit in the result. 
Result so far: 4581.0
If we take 99 away from 174, we end up with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Step 7:
The number 99 fits into 750 7 times, leaving a remainder of 57.
The number 7 becomes the next digit in our result. 
Result so far: 4581.7
Subtract 693 from 750 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Step 8:
99 can be fit into 570 5 times, resulting in a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 4581.75
Deduct 495 from 570 and we're left with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Moving on to step 9:
When dividing 750 by 99, we get 7 with a remainder of 57.
The number 7 becomes the next digit in our result. 
Result so far: 4581.757
Subtract 693 from 750 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Moving on to step 10:
99 goes into 570 5 times with a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 4581.7575
Deduct 495 from 570 and we're left with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Going ahead to step 11:
750 divided by 99 is 7 with a remainder of 57.
Put 7 as the next digit of the answer. 
Result so far: 4581.75757
The remainder is 57 after subtracting 693 from 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 12:
The number 99 fits into 570 5 times, leaving a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 4581.757575
Deduct 495 from 570 and we're left with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Let's proceed to step 13:
When dividing 750 by 99, we get 7 with a remainder of 57.
The number 7 becomes the next digit in our result. 
Result so far: 4581.7575757
If we take 693 away from 750, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

On to step 14:
570 divided by 99 is 5 with a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 4581.75757575
The remainder is 75 after subtracting 495 from 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

The quotient of the division is 4581.75757575, and the remainder is 7.5e-08.