988958 ÷ 99 
The aim is to understand the frequency of 99 in 988958.

Moving on to step 1:
99 can be fit into 9 0 times, resulting in a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Include the next digit (8) from the dividend after 9, then repeat: 98 / 99

Advancing to step 2:
When dividing 98 by 99, we get 0 with a remainder of 98.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 98, we end up with 98.
Append the next digit (8) from the dividend to 98 and continue with: 988 / 99

Going ahead to step 3:
The number 99 fits into 988 9 times, leaving a remainder of 97.
The next digit of our result is 9. 
Result so far: 9.0
Deduct 891 from 988 and we're left with 97.
Bring next digit (9) of the dividend behind the 97 and repeat the process: 979 / 99

Advancing to step 4:
If we divide 979 by 99, we get 9 and a remainder of 88.
Record the quotient 9 as the next digit in the result. 
Result so far: 99.0
Subtracting 891 from 979 leaves us with 88.
Bring next digit (5) of the dividend behind the 88 and repeat the process: 885 / 99

Let's proceed to step 5:
When dividing 885 by 99, we get 8 with a remainder of 93.
Use 8 as the next digit of our solution. 
Result so far: 998.0
Deduct 792 from 885 and we're left with 93.
Fetch the next digit (8) from the dividend, attach it to 93 and continue: 938 / 99

Step 6:
99 goes into 938 9 times with a remainder of 47.
Record the quotient 9 as the next digit in the result. 
Result so far: 9989.0
Subtracting 891 from 938 leaves us with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

On to step 7:
470 divided by 99 is 4 with a remainder of 74.
Record the quotient 4 as the next digit in the result. 
Result so far: 9989.4
If we take 396 away from 470, we end up with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 8:
740 divided by 99 is 7 with a remainder of 47.
Write down 7 as next digit of the result. 
Result so far: 9989.47
Subtract 693 from 740 to get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Going ahead to step 9:
The number 99 fits into 470 4 times, leaving a remainder of 74.
Put 4 as the next digit of the answer. 
Result so far: 9989.474
Subtracting 396 from 470 leaves us with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Step 10:
The number 99 fits into 740 7 times, leaving a remainder of 47.
Record the quotient 7 as the next digit in the result. 
Result so far: 9989.4747
If we subtract 693 from 740, we get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 11:
If we divide 470 by 99, we get 4 and a remainder of 74.
Put 4 as the next digit of the answer. 
Result so far: 9989.47474
The remainder is 74 after subtracting 396 from 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Moving on to step 12:
If we divide 740 by 99, we get 7 and a remainder of 47.
Write down 7 as next digit of the result. 
Result so far: 9989.474747
Subtract 693 from 740 to get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

On to step 13:
The number 99 fits into 470 4 times, leaving a remainder of 74.
Write down 4 as next digit of the result. 
Result so far: 9989.4747474
If we subtract 396 from 470, we get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Advancing to step 14:
740 divided by 99 is 7 with a remainder of 47.
Put 7 as the next digit of the answer. 
Result so far: 9989.47474747
Subtracting 693 from 740 leaves us with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

The quotient of the division is 9989.47474747, and the remainder is 4.7e-08.