Let's divide 486630 by 99
The aim is to understand the frequency of 99 in 486630.

Advancing to step 1:
If we divide 4 by 99, we get 0 and 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.
Fetch the next digit (8) from the dividend, attach it to 4 and continue: 48 / 99

Going ahead to step 2:
If we divide 48 by 99, we get 0 and a remainder of 48.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 48, we get 48.
Append the next digit (6) from the dividend to 48 and continue with: 486 / 99

Step 3:
99 goes into 486 4 times with a remainder of 90.
Write down 4 as next digit of the result. 
Result so far: 4.0
The remainder is 90 after subtracting 396 from 486.
Include the next digit (6) from the dividend after 90, then repeat: 906 / 99

Let's proceed to step 4:
When dividing 906 by 99, we get 9 with a remainder of 15.
Write down 9 as next digit of the result. 
Result so far: 49.0
If we subtract 891 from 906, we get 15.
Append the next digit (3) from the dividend to 15 and continue with: 153 / 99

Step 5:
If we divide 153 by 99, we get 1 and a remainder of 54.
Put 1 as the next digit of the answer. 
Result so far: 491.0
Subtracting 99 from 153 leaves us with 54.
Bring next digit (0) of the dividend behind the 54 and repeat the process: 540 / 99

Step 6:
540 divided by 99 is 5 with a remainder of 45.
The next digit of our result is 5. 
Result so far: 4915.0
If we take 495 away from 540, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 7:
99 goes into 450 4 times with a remainder of 54.
Put 4 as the next digit of the answer. 
Result so far: 4915.4
Subtract 396 from 450 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Moving on to step 8:
When dividing 540 by 99, we get 5 with a remainder of 45.
Write down 5 as next digit of the result. 
Result so far: 4915.45
If we subtract 495 from 540, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 9:
99 goes into 450 4 times with a remainder of 54.
Record the quotient 4 as the next digit in the result. 
Result so far: 4915.454
If we subtract 396 from 450, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 10:
99 can be fit into 540 5 times, resulting in a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 4915.4545
If we subtract 495 from 540, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 11:
The number 99 fits into 450 4 times, leaving a remainder of 54.
Put 4 as the next digit of the answer. 
Result so far: 4915.45454
If we subtract 396 from 450, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 12:
540 divided by 99 is 5 with a remainder of 45.
Put 5 as the next digit of the answer. 
Result so far: 4915.454545
If we take 495 away from 540, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Step 13:
The number 99 fits into 450 4 times, leaving a remainder of 54.
Use 4 as the next digit of our solution. 
Result so far: 4915.4545454
Deduct 396 from 450 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 14:
The number 99 fits into 540 5 times, leaving a remainder of 45.
The next digit of our result is 5. 
Result so far: 4915.45454545
Subtract 495 from 540 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

The final result is 4915.45454545 with a remainder of 4.5e-08.