We're dividing 686127 by 99 
The aim is to understand the frequency of 99 in 686127.

Let's proceed to step 1:
6 divided by 99 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 99

Step 2:
68 divided by 99 is 0 with a remainder of 68.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 68, we get 68.
Include the next digit (6) from the dividend after 68, then repeat: 686 / 99

Let's proceed to step 3:
When dividing 686 by 99, we get 6 with a remainder of 92.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Subtracting 594 from 686 leaves us with 92.
Take the next digit (1) from the dividend and append it to 92, then repeat: 921 / 99

On to step 4:
When dividing 921 by 99, we get 9 with a remainder of 30.
The number 9 becomes the next digit in our result. 
Result so far: 69.0
If we subtract 891 from 921, we get 30.
Take the next digit (2) from the dividend and append it to 30, then repeat: 302 / 99

Going ahead to step 5:
If we divide 302 by 99, we get 3 and a remainder of 5.
The next digit of our result is 3. 
Result so far: 693.0
Subtracting 297 from 302 leaves us with 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 99

Step 6:
If we divide 57 by 99, we get 0 and a remainder of 57.
Record the quotient 0 as the next digit in the result. 
Result so far: 6930.0
Subtracting 0 from 57 leaves us 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.

Moving on to step 7:
570 divided by 99 is 5 with a remainder of 75.
The next digit of our result is 5. 
Result so far: 6930.5
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 8:
The number 99 fits into 750 7 times, leaving a remainder of 57.
Use 7 as the next digit of our solution. 
Result so far: 6930.57
If we subtract 693 from 750, we 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.

Let's proceed to step 9:
570 divided by 99 is 5 with a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 6930.575
If we take 495 away from 570, 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.

Moving on to step 10:
If we divide 750 by 99, we get 7 and a remainder of 57.
Put 7 as the next digit of the answer. 
Result so far: 6930.5757
Deduct 693 from 750 and we're left 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.

Moving on to step 11:
99 can be fit into 570 5 times, resulting in a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 6930.57575
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.

Advancing to step 12:
If we divide 750 by 99, we get 7 and a remainder of 57.
The number 7 becomes the next digit in our result. 
Result so far: 6930.575757
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.

Going ahead to step 13:
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: 6930.5757575
If we subtract 495 from 570, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Advancing to step 14:
If we divide 750 by 99, we get 7 and a remainder of 57.
The number 7 becomes the next digit in our result. 
Result so far: 6930.57575757
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.

In conclusion, the division gives 6930.57575757 with a balance of 5.7e-08.