Let's divide 96664686 by 998
The aim is to understand the frequency of 998 in 96664686.

Step 1:
If we divide 9 by 998, we get 0 and a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Include the next digit (6) from the dividend after 9, then repeat: 96 / 998

Moving on to step 2:
When dividing 96 by 998, we get 0 with a remainder of 96.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 96 after subtracting 0 from 96.
Append the next digit (6) from the dividend to 96 and continue with: 966 / 998

On to step 3:
If we divide 966 by 998, we get 0 and a remainder of 966.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 966 leaves us with 966.
Include the next digit (6) from the dividend after 966, then repeat: 9666 / 998

Let's proceed to step 4:
9666 divided by 998 is 9 with a remainder of 684.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
If we take 8982 away from 9666, we end up with 684.
Include the next digit (4) from the dividend after 684, then repeat: 6844 / 998

Step 5:
6844 divided by 998 is 6 with a remainder of 856.
Write down 6 as next digit of the result. 
Result so far: 96.0
Subtracting 5988 from 6844 leaves us with 856.
Grab the next digit (6) from the dividend, add it to 856, then carry on: 8566 / 998

Step 6:
998 can be fit into 8566 8 times, resulting in a remainder of 582.
Write down 8 as next digit of the result. 
Result so far: 968.0
Subtracting 7984 from 8566 leaves us with 582.
Include the next digit (8) from the dividend after 582, then repeat: 5828 / 998

Going ahead to step 7:
The number 998 fits into 5828 5 times, leaving a remainder of 838.
Write down 5 as next digit of the result. 
Result so far: 9685.0
Deduct 4990 from 5828 and we're left with 838.
Bring next digit (6) of the dividend behind the 838 and repeat the process: 8386 / 998

On to step 8:
The number 998 fits into 8386 8 times, leaving a remainder of 402.
Put 8 as the next digit of the answer. 
Result so far: 96858.0
Subtract 7984 from 8386 to get 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Moving on to step 9:
998 goes into 4020 4 times with a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 96858.4
If we subtract 3992 from 4020, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 10:
998 can be fit into 280 0 times, resulting in a remainder of 280.
Put 0 as the next digit of the answer. 
Result so far: 96858.4
Subtracting 0 from 280 leaves us with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Advancing to step 11:
998 goes into 2800 2 times with a remainder of 804.
The next digit of our result is 2. 
Result so far: 96858.402
Subtracting 1996 from 2800 leaves us with 804.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8040, and continue the process.

Moving on to step 12:
998 can be fit into 8040 8 times, resulting in a remainder of 56.
Use 8 as the next digit of our solution. 
Result so far: 96858.4028
Subtract 7984 from 8040 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 13:
When dividing 560 by 998, we get 0 with a remainder of 560.
The next digit of our result is 0. 
Result so far: 96858.4028
Deduct 0 from 560 and we're left with 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Advancing to step 14:
The number 998 fits into 5600 5 times, leaving a remainder of 610.
Write down 5 as next digit of the result. 
Result so far: 96858.402805
Subtracting 4990 from 5600 leaves us with 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6100, and continue the process.

On to step 15:
The number 998 fits into 6100 6 times, leaving a remainder of 112.
Record the quotient 6 as the next digit in the result. 
Result so far: 96858.4028056
If we subtract 5988 from 6100, we get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Moving on to step 16:
998 goes into 1120 1 times with a remainder of 122.
Put 1 as the next digit of the answer. 
Result so far: 96858.40280561
Subtracting 998 from 1120 leaves us with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

The final result is 96858.40280561 with a remainder of 1.22e-07.