Let's divide 80673 by 99
The aim is to understand the frequency of 99 in 80673.

Going ahead to step 1:
If we divide 8 by 99, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 99

Let's proceed to step 2:
If we divide 80 by 99, we get 0 and a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 80 after subtracting 0 from 80.
Append the next digit (6) from the dividend to 80 and continue with: 806 / 99

Going ahead to step 3:
99 can be fit into 806 8 times, resulting in a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we subtract 792 from 806, we get 14.
Append the next digit (7) from the dividend to 14 and continue with: 147 / 99

On to step 4:
If we divide 147 by 99, we get 1 and a remainder of 48.
The next digit of our result is 1. 
Result so far: 81.0
If we take 99 away from 147, we end up with 48.
Append the next digit (3) from the dividend to 48 and continue with: 483 / 99

Step 5:
The number 99 fits into 483 4 times, leaving a remainder of 87.
Record the quotient 4 as the next digit in the result. 
Result so far: 814.0
Subtracting 396 from 483 leaves us with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Step 6:
The number 99 fits into 870 8 times, leaving a remainder of 78.
The next digit of our result is 8. 
Result so far: 814.8
Deduct 792 from 870 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Moving on to step 7:
99 goes into 780 7 times with a remainder of 87.
Record the quotient 7 as the next digit in the result. 
Result so far: 814.87
Subtract 693 from 780 to get 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Advancing to step 8:
99 goes into 870 8 times with a remainder of 78.
Use 8 as the next digit of our solution. 
Result so far: 814.878
If we subtract 792 from 870, we get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Going ahead to step 9:
The number 99 fits into 780 7 times, leaving a remainder of 87.
Use 7 as the next digit of our solution. 
Result so far: 814.8787
Subtract 693 from 780 to get 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Step 10:
If we divide 870 by 99, we get 8 and a remainder of 78.
Write down 8 as next digit of the result. 
Result so far: 814.87878
The remainder is 78 after subtracting 792 from 870.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

On to step 11:
780 divided by 99 is 7 with a remainder of 87.
Put 7 as the next digit of the answer. 
Result so far: 814.878787
Subtract 693 from 780 to get 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

On to step 12:
If we divide 870 by 99, we get 8 and a remainder of 78.
Record the quotient 8 as the next digit in the result. 
Result so far: 814.8787878
If we subtract 792 from 870, we get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 13:
When dividing 780 by 99, we get 7 with a remainder of 87.
Put 7 as the next digit of the answer. 
Result so far: 814.87878787
Subtract 693 from 780 to get 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

After the division, we end up with 814.87878787 and a remainder of 8.7e-08.