42375935 ÷ 640 
We want to divide 42375935 by 640.

Moving on to step 1:
640 can be fit into 4 0 times, resulting in a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 640

Advancing to step 2:
640 can be fit into 42 0 times, resulting in a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Fetch the next digit (3) from the dividend, attach it to 42 and continue: 423 / 640

Step 3:
The number 640 fits into 423 0 times, leaving a remainder of 423.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 423 and we're left with 423.
Fetch the next digit (7) from the dividend, attach it to 423 and continue: 4237 / 640

Step 4:
If we divide 4237 by 640, we get 6 and a remainder of 397.
Write down 6 as next digit of the result. 
Result so far: 6.0
Deduct 3840 from 4237 and we're left with 397.
Include the next digit (5) from the dividend after 397, then repeat: 3975 / 640

On to step 5:
640 can be fit into 3975 6 times, resulting in a remainder of 135.
Put 6 as the next digit of the answer. 
Result so far: 66.0
Subtract 3840 from 3975 to get 135.
Bring next digit (9) of the dividend behind the 135 and repeat the process: 1359 / 640

Moving on to step 6:
The number 640 fits into 1359 2 times, leaving a remainder of 79.
The number 2 becomes the next digit in our result. 
Result so far: 662.0
Deduct 1280 from 1359 and we're left with 79.
Bring next digit (3) of the dividend behind the 79 and repeat the process: 793 / 640

Going ahead to step 7:
640 goes into 793 1 times with a remainder of 153.
The number 1 becomes the next digit in our result. 
Result so far: 6621.0
Deduct 640 from 793 and we're left with 153.
Fetch the next digit (5) from the dividend, attach it to 153 and continue: 1535 / 640

On to step 8:
640 can be fit into 1535 2 times, resulting in a remainder of 255.
Write down 2 as next digit of the result. 
Result so far: 66212.0
Subtract 1280 from 1535 to get 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Step 9:
640 can be fit into 2550 3 times, resulting in a remainder of 630.
The next digit of our result is 3. 
Result so far: 66212.3
Subtract 1920 from 2550 to get 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

On to step 10:
If we divide 6300 by 640, we get 9 and a remainder of 540.
Record the quotient 9 as the next digit in the result. 
Result so far: 66212.39
Subtracting 5760 from 6300 leaves us with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Step 11:
If we divide 5400 by 640, we get 8 and a remainder of 280.
The number 8 becomes the next digit in our result. 
Result so far: 66212.398
If we subtract 5120 from 5400, we get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

On to step 12:
The number 640 fits into 2800 4 times, leaving a remainder of 240.
Put 4 as the next digit of the answer. 
Result so far: 66212.3984
Subtracting 2560 from 2800 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.

Advancing to step 13:
2400 divided by 640 is 3 with a remainder of 480.
Use 3 as the next digit of our solution. 
Result so far: 66212.39843
Subtracting 1920 from 2400 leaves us with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Going ahead to step 14:
4800 divided by 640 is 7 with a remainder of 320.
Put 7 as the next digit of the answer. 
Result so far: 66212.398437
Subtracting 4480 from 4800 leaves us with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Let's proceed to step 15:
The number 640 fits into 3200 5 times, leaving a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 66212.3984375
If we take 3200 away from 3200, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 16:
0 divided by 640 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 66212.3984375
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 66212.3984375 with a remaining 0.0.