We're dividing 766809 by 99 
The aim is to understand the frequency of 99 in 766809.

Going ahead to step 1:
99 can be fit into 7 0 times, resulting in a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Append the next digit (6) from the dividend to 7 and continue with: 76 / 99

On to step 2:
99 goes into 76 0 times with a remainder of 76.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 76 leaves us with 76.
Take the next digit (6) from the dividend and append it to 76, then repeat: 766 / 99

Moving on to step 3:
The number 99 fits into 766 7 times, leaving a remainder of 73.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtracting 693 from 766 leaves us with 73.
Fetch the next digit (8) from the dividend, attach it to 73 and continue: 738 / 99

Advancing to step 4:
99 can be fit into 738 7 times, resulting in a remainder of 45.
Record the quotient 7 as the next digit in the result. 
Result so far: 77.0
If we take 693 away from 738, we end up with 45.
Take the next digit (0) from the dividend and append it to 45, then repeat: 450 / 99

Going ahead to step 5:
The number 99 fits into 450 4 times, leaving a remainder of 54.
Record the quotient 4 as the next digit in the result. 
Result so far: 774.0
Deduct 396 from 450 and we're left with 54.
Include the next digit (9) from the dividend after 54, then repeat: 549 / 99

On to step 6:
99 can be fit into 549 5 times, resulting in a remainder of 54.
The next digit of our result is 5. 
Result so far: 7745.0
Subtract 495 from 549 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.

Step 7:
99 can be fit into 540 5 times, resulting in a remainder of 45.
Record the quotient 5 as the next digit in the result. 
Result so far: 7745.5
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.

Moving on to step 8:
99 can be fit into 450 4 times, resulting in a remainder of 54.
Use 4 as the next digit of our solution. 
Result so far: 7745.54
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.

Let's proceed to step 9:
The number 99 fits into 540 5 times, leaving a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 7745.545
Subtracting 495 from 540 leaves us 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 10:
99 goes into 450 4 times with a remainder of 54.
The next digit of our result is 4. 
Result so far: 7745.5454
If we take 396 away from 450, we end up 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.

On to step 11:
99 can be fit into 540 5 times, resulting in a remainder of 45.
Record the quotient 5 as the next digit in the result. 
Result so far: 7745.54545
The remainder is 45 after subtracting 495 from 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 12:
When dividing 450 by 99, we get 4 with a remainder of 54.
Record the quotient 4 as the next digit in the result. 
Result so far: 7745.545454
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.

Let's proceed to step 13:
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: 7745.5454545
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.

Moving on to step 14:
99 goes into 450 4 times with a remainder of 54.
The number 4 becomes the next digit in our result. 
Result so far: 7745.54545454
If we take 396 away from 450, we end up 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.

Our division results in 7745.54545454 with a remaining 5.4e-08.