42560276 divided by 660 
Let's see how many times 660 fits into 42560276.

Step 1:
If we divide 4 by 660, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 660

Going ahead to step 2:
42 divided by 660 is 0 with a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Include the next digit (5) from the dividend after 42, then repeat: 425 / 660

Going ahead to step 3:
425 divided by 660 is 0 with a remainder of 425.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 425 and we're left with 425.
Fetch the next digit (6) from the dividend, attach it to 425 and continue: 4256 / 660

Going ahead to step 4:
If we divide 4256 by 660, we get 6 and a remainder of 296.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
The remainder is 296 after subtracting 3960 from 4256.
Grab the next digit (0) from the dividend, add it to 296, then carry on: 2960 / 660

On to step 5:
660 can be fit into 2960 4 times, resulting in a remainder of 320.
Use 4 as the next digit of our solution. 
Result so far: 64.0
If we take 2640 away from 2960, we end up with 320.
Append the next digit (2) from the dividend to 320 and continue with: 3202 / 660

On to step 6:
3202 divided by 660 is 4 with a remainder of 562.
Use 4 as the next digit of our solution. 
Result so far: 644.0
Deduct 2640 from 3202 and we're left with 562.
Append the next digit (7) from the dividend to 562 and continue with: 5627 / 660

Let's proceed to step 7:
660 goes into 5627 8 times with a remainder of 347.
Use 8 as the next digit of our solution. 
Result so far: 6448.0
The remainder is 347 after subtracting 5280 from 5627.
Bring next digit (6) of the dividend behind the 347 and repeat the process: 3476 / 660

Going ahead to step 8:
3476 divided by 660 is 5 with a remainder of 176.
Write down 5 as next digit of the result. 
Result so far: 64485.0
Subtract 3300 from 3476 to get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Advancing to step 9:
660 can be fit into 1760 2 times, resulting in a remainder of 440.
Write down 2 as next digit of the result. 
Result so far: 64485.2
Subtracting 1320 from 1760 leaves us with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Let's proceed to step 10:
660 can be fit into 4400 6 times, resulting in a remainder of 440.
Write down 6 as next digit of the result. 
Result so far: 64485.26
If we take 3960 away from 4400, we end up with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Advancing to step 11:
If we divide 4400 by 660, we get 6 and a remainder of 440.
Use 6 as the next digit of our solution. 
Result so far: 64485.266
Subtract 3960 from 4400 to get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

The final outcome is 64485.266, with a leftover of 0.044.