55245012 ÷ 660 
The aim is to understand the frequency of 660 in 55245012.

Step 1:
660 goes into 5 0 times with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 660

Step 2:
When dividing 55 by 660, we get 0 with a remainder of 55.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 55 and we're left with 55.
Include the next digit (2) from the dividend after 55, then repeat: 552 / 660

Advancing to step 3:
660 can be fit into 552 0 times, resulting in a remainder of 552.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 552, we end up with 552.
Append the next digit (4) from the dividend to 552 and continue with: 5524 / 660

Let's proceed to step 4:
When dividing 5524 by 660, we get 8 with a remainder of 244.
The next digit of our result is 8. 
Result so far: 8.0
Subtract 5280 from 5524 to get 244.
Bring next digit (5) of the dividend behind the 244 and repeat the process: 2445 / 660

Going ahead to step 5:
660 can be fit into 2445 3 times, resulting in a remainder of 465.
Write down 3 as next digit of the result. 
Result so far: 83.0
If we take 1980 away from 2445, we end up with 465.
Fetch the next digit (0) from the dividend, attach it to 465 and continue: 4650 / 660

Step 6:
If we divide 4650 by 660, we get 7 and a remainder of 30.
The number 7 becomes the next digit in our result. 
Result so far: 837.0
Subtracting 4620 from 4650 leaves us with 30.
Grab the next digit (1) from the dividend, add it to 30, then carry on: 301 / 660

On to step 7:
301 divided by 660 is 0 with a remainder of 301.
Put 0 as the next digit of the answer. 
Result so far: 8370.0
Subtract 0 from 301 to get 301.
Include the next digit (2) from the dividend after 301, then repeat: 3012 / 660

Advancing to step 8:
If we divide 3012 by 660, we get 4 and a remainder of 372.
Use 4 as the next digit of our solution. 
Result so far: 83704.0
If we subtract 2640 from 3012, we get 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Let's proceed to step 9:
The number 660 fits into 3720 5 times, leaving a remainder of 420.
The number 5 becomes the next digit in our result. 
Result so far: 83704.5
If we subtract 3300 from 3720, 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.

Let's proceed to step 10:
660 can be fit into 4200 6 times, resulting in a remainder of 240.
Use 6 as the next digit of our solution. 
Result so far: 83704.56
If we take 3960 away from 4200, we end up 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.

Let's proceed to step 11:
2400 divided by 660 is 3 with a remainder of 420.
Write down 3 as next digit of the result. 
Result so far: 83704.563
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.

Moving on to step 12:
When dividing 4200 by 660, we get 6 with a remainder of 240.
Put 6 as the next digit of the answer. 
Result so far: 83704.5636
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.

Going ahead to step 13:
If we divide 2400 by 660, we get 3 and a remainder of 420.
The number 3 becomes the next digit in our result. 
Result so far: 83704.56363
Subtract 1980 from 2400 to 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:
4200 divided by 660 is 6 with a remainder of 240.
Use 6 as the next digit of our solution. 
Result so far: 83704.563636
If we take 3960 away from 4200, we end up 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.

Going ahead to step 15:
The number 660 fits into 2400 3 times, leaving a remainder of 420.
Write down 3 as next digit of the result. 
Result so far: 83704.5636363
The remainder is 420 after subtracting 1980 from 2400.
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 16:
660 can be fit into 4200 6 times, resulting in a remainder of 240.
The next digit of our result is 6. 
Result so far: 83704.56363636
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.

Our division results in 83704.56363636 with a remaining 2.4e-07.