9680871 divided by 660 
The aim is to understand the frequency of 660 in 9680871.

Moving on to step 1:
When dividing 9 by 660, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Bring next digit (6) of the dividend behind the 9 and repeat the process: 96 / 660

Advancing to step 2:
The number 660 fits into 96 0 times, leaving a remainder of 96.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 96, we end up with 96.
Grab the next digit (8) from the dividend, add it to 96, then carry on: 968 / 660

Step 3:
968 divided by 660 is 1 with a remainder of 308.
The next digit of our result is 1. 
Result so far: 1.0
If we take 660 away from 968, we end up with 308.
Bring next digit (0) of the dividend behind the 308 and repeat the process: 3080 / 660

Going ahead to step 4:
When dividing 3080 by 660, we get 4 with a remainder of 440.
The next digit of our result is 4. 
Result so far: 14.0
Subtract 2640 from 3080 to get 440.
Fetch the next digit (8) from the dividend, attach it to 440 and continue: 4408 / 660

On to step 5:
When dividing 4408 by 660, we get 6 with a remainder of 448.
Record the quotient 6 as the next digit in the result. 
Result so far: 146.0
If we take 3960 away from 4408, we end up with 448.
Append the next digit (7) from the dividend to 448 and continue with: 4487 / 660

Moving on to step 6:
660 goes into 4487 6 times with a remainder of 527.
Record the quotient 6 as the next digit in the result. 
Result so far: 1466.0
Deduct 3960 from 4487 and we're left with 527.
Fetch the next digit (1) from the dividend, attach it to 527 and continue: 5271 / 660

Going ahead to step 7:
If we divide 5271 by 660, we get 7 and a remainder of 651.
Record the quotient 7 as the next digit in the result. 
Result so far: 14667.0
Deduct 4620 from 5271 and we're left with 651.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6510, and continue the process.

On to step 8:
660 goes into 6510 9 times with a remainder of 570.
The next digit of our result is 9. 
Result so far: 14667.9
Deduct 5940 from 6510 and we're left with 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Step 9:
The number 660 fits into 5700 8 times, leaving a remainder of 420.
The number 8 becomes the next digit in our result. 
Result so far: 14667.98
If we take 5280 away from 5700, we end up with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

On to step 10:
660 goes into 4200 6 times with a remainder of 240.
Put 6 as the next digit of the answer. 
Result so far: 14667.986
Subtract 3960 from 4200 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Advancing to step 11:
2400 divided by 660 is 3 with a remainder of 420.
Put 3 as the next digit of the answer. 
Result so far: 14667.9863
Subtracting 1980 from 2400 leaves us with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Let's proceed to step 12:
If we divide 4200 by 660, we get 6 and a remainder of 240.
Use 6 as the next digit of our solution. 
Result so far: 14667.98636
Subtracting 3960 from 4200 leaves us with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Step 13:
2400 divided by 660 is 3 with a remainder of 420.
Use 3 as the next digit of our solution. 
Result so far: 14667.986363
If we subtract 1980 from 2400, we get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Moving on to step 14:
The number 660 fits into 4200 6 times, leaving a remainder of 240.
Record the quotient 6 as the next digit in the result. 
Result so far: 14667.9863636
The remainder is 240 after subtracting 3960 from 4200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Moving on to step 15:
When dividing 2400 by 660, we get 3 with a remainder of 420.
The next digit of our result is 3. 
Result so far: 14667.98636363
If we take 1980 away from 2400, we end up with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

The quotient of the division is 14667.98636363, and the remainder is 4.2e-07.