96946479 ÷ 660 
The aim is to understand the frequency of 660 in 96946479.

On to step 1:
660 goes into 9 0 times with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Grab the next digit (6) from the dividend, add it to 9, then carry on: 96 / 660

On to step 2:
96 divided by 660 is 0 with a remainder of 96.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 96 leaves us with 96.
Grab the next digit (9) from the dividend, add it to 96, then carry on: 969 / 660

Going ahead to step 3:
660 goes into 969 1 times with a remainder of 309.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 660 from 969 leaves us with 309.
Append the next digit (4) from the dividend to 309 and continue with: 3094 / 660

On to step 4:
3094 divided by 660 is 4 with a remainder of 454.
Put 4 as the next digit of the answer. 
Result so far: 14.0
Subtract 2640 from 3094 to get 454.
Append the next digit (6) from the dividend to 454 and continue with: 4546 / 660

Going ahead to step 5:
660 can be fit into 4546 6 times, resulting in a remainder of 586.
Put 6 as the next digit of the answer. 
Result so far: 146.0
If we take 3960 away from 4546, we end up with 586.
Include the next digit (4) from the dividend after 586, then repeat: 5864 / 660

Advancing to step 6:
660 goes into 5864 8 times with a remainder of 584.
The next digit of our result is 8. 
Result so far: 1468.0
Deduct 5280 from 5864 and we're left with 584.
Bring next digit (7) of the dividend behind the 584 and repeat the process: 5847 / 660

Moving on to step 7:
The number 660 fits into 5847 8 times, leaving a remainder of 567.
Put 8 as the next digit of the answer. 
Result so far: 14688.0
If we subtract 5280 from 5847, we get 567.
Fetch the next digit (9) from the dividend, attach it to 567 and continue: 5679 / 660

Going ahead to step 8:
When dividing 5679 by 660, we get 8 with a remainder of 399.
Put 8 as the next digit of the answer. 
Result so far: 146888.0
Deduct 5280 from 5679 and we're left with 399.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3990, and continue the process.

Going ahead to step 9:
The number 660 fits into 3990 6 times, leaving a remainder of 30.
The number 6 becomes the next digit in our result. 
Result so far: 146888.6
The remainder is 30 after subtracting 3960 from 3990.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 10:
When dividing 300 by 660, we get 0 with a remainder of 300.
Record the quotient 0 as the next digit in the result. 
Result so far: 146888.6
Subtract 0 from 300 to get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

On to step 11:
3000 divided by 660 is 4 with a remainder of 360.
The next digit of our result is 4. 
Result so far: 146888.604
The remainder is 360 after subtracting 2640 from 3000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Advancing to step 12:
660 can be fit into 3600 5 times, resulting in a remainder of 300.
The number 5 becomes the next digit in our result. 
Result so far: 146888.6045
The remainder is 300 after subtracting 3300 from 3600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Going ahead to step 13:
660 goes into 3000 4 times with a remainder of 360.
Put 4 as the next digit of the answer. 
Result so far: 146888.60454
If we subtract 2640 from 3000, we get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

On to step 14:
660 can be fit into 3600 5 times, resulting in a remainder of 300.
Use 5 as the next digit of our solution. 
Result so far: 146888.604545
Subtract 3300 from 3600 to get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Moving on to step 15:
The number 660 fits into 3000 4 times, leaving a remainder of 360.
Write down 4 as next digit of the result. 
Result so far: 146888.6045454
Subtract 2640 from 3000 to get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Moving on to step 16:
The number 660 fits into 3600 5 times, leaving a remainder of 300.
Put 5 as the next digit of the answer. 
Result so far: 146888.60454545
If we take 3300 away from 3600, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

The final result is 146888.60454545 with a remainder of 3e-07.