We look at the division of 879296 by 99 
The aim is to understand the frequency of 99 in 879296.

On to step 1:
The number 99 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 99

Step 2:
99 goes into 87 0 times with a remainder of 87.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 87, we get 87.
Include the next digit (9) from the dividend after 87, then repeat: 879 / 99

Moving on to step 3:
If we divide 879 by 99, we get 8 and a remainder of 87.
Use 8 as the next digit of our solution. 
Result so far: 8.0
The remainder is 87 after subtracting 792 from 879.
Fetch the next digit (2) from the dividend, attach it to 87 and continue: 872 / 99

On to step 4:
If we divide 872 by 99, we get 8 and a remainder of 80.
The number 8 becomes the next digit in our result. 
Result so far: 88.0
The remainder is 80 after subtracting 792 from 872.
Include the next digit (9) from the dividend after 80, then repeat: 809 / 99

Going ahead to step 5:
If we divide 809 by 99, we get 8 and a remainder of 17.
The number 8 becomes the next digit in our result. 
Result so far: 888.0
If we subtract 792 from 809, we get 17.
Append the next digit (6) from the dividend to 17 and continue with: 176 / 99

On to step 6:
If we divide 176 by 99, we get 1 and a remainder of 77.
Record the quotient 1 as the next digit in the result. 
Result so far: 8881.0
Deduct 99 from 176 and we're left with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Moving on to step 7:
If we divide 770 by 99, we get 7 and a remainder of 77.
Use 7 as the next digit of our solution. 
Result so far: 8881.7
Subtracting 693 from 770 leaves us with 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Step 8:
770 divided by 99 is 7 with a remainder of 77.
Record the quotient 7 as the next digit in the result. 
Result so far: 8881.77
If we subtract 693 from 770, we get 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

After the division, we end up with 8881.77 and a remainder of 0.077.