We look at the division of 49291832 by 660 
The aim is to understand the frequency of 660 in 49291832.

Step 1:
When dividing 4 by 660, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Append the next digit (9) from the dividend to 4 and continue with: 49 / 660

Let's proceed to step 2:
49 divided by 660 is 0 with a remainder of 49.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 49, we get 49.
Fetch the next digit (2) from the dividend, attach it to 49 and continue: 492 / 660

Going ahead to step 3:
The number 660 fits into 492 0 times, leaving a remainder of 492.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 492 after subtracting 0 from 492.
Append the next digit (9) from the dividend to 492 and continue with: 4929 / 660

Step 4:
4929 divided by 660 is 7 with a remainder of 309.
The next digit of our result is 7. 
Result so far: 7.0
The remainder is 309 after subtracting 4620 from 4929.
Include the next digit (1) from the dividend after 309, then repeat: 3091 / 660

Moving on to step 5:
When dividing 3091 by 660, we get 4 with a remainder of 451.
Use 4 as the next digit of our solution. 
Result so far: 74.0
Subtracting 2640 from 3091 leaves us with 451.
Bring next digit (8) of the dividend behind the 451 and repeat the process: 4518 / 660

Moving on to step 6:
When dividing 4518 by 660, we get 6 with a remainder of 558.
Put 6 as the next digit of the answer. 
Result so far: 746.0
Subtract 3960 from 4518 to get 558.
Fetch the next digit (3) from the dividend, attach it to 558 and continue: 5583 / 660

Let's proceed to step 7:
When dividing 5583 by 660, we get 8 with a remainder of 303.
Write down 8 as next digit of the result. 
Result so far: 7468.0
Subtract 5280 from 5583 to get 303.
Grab the next digit (2) from the dividend, add it to 303, then carry on: 3032 / 660

Going ahead to step 8:
When dividing 3032 by 660, we get 4 with a remainder of 392.
The number 4 becomes the next digit in our result. 
Result so far: 74684.0
Deduct 2640 from 3032 and we're left with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

On to step 9:
3920 divided by 660 is 5 with a remainder of 620.
Use 5 as the next digit of our solution. 
Result so far: 74684.5
Subtract 3300 from 3920 to get 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Advancing to step 10:
660 can be fit into 6200 9 times, resulting in a remainder of 260.
Record the quotient 9 as the next digit in the result. 
Result so far: 74684.59
If we subtract 5940 from 6200, we get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Advancing to step 11:
2600 divided by 660 is 3 with a remainder of 620.
The number 3 becomes the next digit in our result. 
Result so far: 74684.593
The remainder is 620 after subtracting 1980 from 2600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Going ahead to step 12:
660 can be fit into 6200 9 times, resulting in a remainder of 260.
Record the quotient 9 as the next digit in the result. 
Result so far: 74684.5939
Subtracting 5940 from 6200 leaves us with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Let's proceed to step 13:
660 can be fit into 2600 3 times, resulting in a remainder of 620.
Write down 3 as next digit of the result. 
Result so far: 74684.59393
If we take 1980 away from 2600, we end up with 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Step 14:
If we divide 6200 by 660, we get 9 and a remainder of 260.
Put 9 as the next digit of the answer. 
Result so far: 74684.593939
Deduct 5940 from 6200 and we're left with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

On to step 15:
The number 660 fits into 2600 3 times, leaving a remainder of 620.
The number 3 becomes the next digit in our result. 
Result so far: 74684.5939393
Subtract 1980 from 2600 to get 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Step 16:
6200 divided by 660 is 9 with a remainder of 260.
The number 9 becomes the next digit in our result. 
Result so far: 74684.59393939
If we take 5940 away from 6200, we end up with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

The final result is 74684.59393939 with a remainder of 2.6e-07.