66579520 divided by 998 
The aim is to understand the frequency of 998 in 66579520.

Let's proceed to step 1:
6 divided by 998 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 998

Let's proceed to step 2:
If we divide 66 by 998, we get 0 and a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Bring next digit (5) of the dividend behind the 66 and repeat the process: 665 / 998

Advancing to step 3:
When dividing 665 by 998, we get 0 with a remainder of 665.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 665 after subtracting 0 from 665.
Append the next digit (7) from the dividend to 665 and continue with: 6657 / 998

Going ahead to step 4:
The number 998 fits into 6657 6 times, leaving a remainder of 669.
The next digit of our result is 6. 
Result so far: 6.0
If we subtract 5988 from 6657, we get 669.
Grab the next digit (9) from the dividend, add it to 669, then carry on: 6699 / 998

Advancing to step 5:
998 goes into 6699 6 times with a remainder of 711.
Put 6 as the next digit of the answer. 
Result so far: 66.0
Deduct 5988 from 6699 and we're left with 711.
Bring next digit (5) of the dividend behind the 711 and repeat the process: 7115 / 998

Step 6:
998 goes into 7115 7 times with a remainder of 129.
Put 7 as the next digit of the answer. 
Result so far: 667.0
Subtracting 6986 from 7115 leaves us with 129.
Append the next digit (2) from the dividend to 129 and continue with: 1292 / 998

Step 7:
998 goes into 1292 1 times with a remainder of 294.
Put 1 as the next digit of the answer. 
Result so far: 6671.0
Deduct 998 from 1292 and we're left with 294.
Include the next digit (0) from the dividend after 294, then repeat: 2940 / 998

Step 8:
998 goes into 2940 2 times with a remainder of 944.
The next digit of our result is 2. 
Result so far: 66712.0
Subtract 1996 from 2940 to get 944.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9440, and continue the process.

Let's proceed to step 9:
If we divide 9440 by 998, we get 9 and a remainder of 458.
The number 9 becomes the next digit in our result. 
Result so far: 66712.9
If we take 8982 away from 9440, we end up with 458.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

Going ahead to step 10:
If we divide 4580 by 998, we get 4 and a remainder of 588.
Write down 4 as next digit of the result. 
Result so far: 66712.94
Subtracting 3992 from 4580 leaves us with 588.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5880, and continue the process.

Moving on to step 11:
The number 998 fits into 5880 5 times, leaving a remainder of 890.
The next digit of our result is 5. 
Result so far: 66712.945
The remainder is 890 after subtracting 4990 from 5880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8900, and continue the process.

Let's proceed to step 12:
When dividing 8900 by 998, we get 8 with a remainder of 916.
Use 8 as the next digit of our solution. 
Result so far: 66712.9458
If we subtract 7984 from 8900, we get 916.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9160, and continue the process.

On to step 13:
998 can be fit into 9160 9 times, resulting in a remainder of 178.
Put 9 as the next digit of the answer. 
Result so far: 66712.94589
The remainder is 178 after subtracting 8982 from 9160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Let's proceed to step 14:
The number 998 fits into 1780 1 times, leaving a remainder of 782.
Use 1 as the next digit of our solution. 
Result so far: 66712.945891
Subtract 998 from 1780 to get 782.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7820, and continue the process.

Advancing to step 15:
998 goes into 7820 7 times with a remainder of 834.
Put 7 as the next digit of the answer. 
Result so far: 66712.9458917
If we subtract 6986 from 7820, we get 834.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8340, and continue the process.

Step 16:
The number 998 fits into 8340 8 times, leaving a remainder of 356.
The next digit of our result is 8. 
Result so far: 66712.94589178
Subtracting 7984 from 8340 leaves us with 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

Our division results in 66712.94589178 with a remaining 3.56e-07.