42565116 ÷ 721 
We want to figure out the number of times 42565116 can be divided by 721.

Step 1:
The number 721 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 721

Step 2:
721 can be fit into 42 0 times, resulting in a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Append the next digit (5) from the dividend to 42 and continue with: 425 / 721

On to step 3:
721 can be fit into 425 0 times, resulting in a remainder of 425.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 425 leaves us with 425.
Take the next digit (6) from the dividend and append it to 425, then repeat: 4256 / 721

Advancing to step 4:
721 goes into 4256 5 times with a remainder of 651.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we subtract 3605 from 4256, we get 651.
Include the next digit (5) from the dividend after 651, then repeat: 6515 / 721

Advancing to step 5:
721 can be fit into 6515 9 times, resulting in a remainder of 26.
Put 9 as the next digit of the answer. 
Result so far: 59.0
Subtract 6489 from 6515 to get 26.
Take the next digit (1) from the dividend and append it to 26, then repeat: 261 / 721

Step 6:
If we divide 261 by 721, we get 0 and a remainder of 261.
Put 0 as the next digit of the answer. 
Result so far: 590.0
If we subtract 0 from 261, we get 261.
Grab the next digit (1) from the dividend, add it to 261, then carry on: 2611 / 721

Let's proceed to step 7:
The number 721 fits into 2611 3 times, leaving a remainder of 448.
Use 3 as the next digit of our solution. 
Result so far: 5903.0
Subtract 2163 from 2611 to get 448.
Grab the next digit (6) from the dividend, add it to 448, then carry on: 4486 / 721

On to step 8:
721 can be fit into 4486 6 times, resulting in a remainder of 160.
Put 6 as the next digit of the answer. 
Result so far: 59036.0
Deduct 4326 from 4486 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Moving on to step 9:
1600 divided by 721 is 2 with a remainder of 158.
Put 2 as the next digit of the answer. 
Result so far: 59036.2
Subtract 1442 from 1600 to get 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Let's proceed to step 10:
The number 721 fits into 1580 2 times, leaving a remainder of 138.
Put 2 as the next digit of the answer. 
Result so far: 59036.22
Deduct 1442 from 1580 and we're left with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

The quotient of the division is 59036.22, and the remainder is 0.138.