42431920 divided by 66 
We want to divide 42431920 by 66.

Going ahead to step 1:
4 divided by 66 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 66

On to step 2:
The number 66 fits into 42 0 times, leaving a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Include the next digit (4) from the dividend after 42, then repeat: 424 / 66

Advancing to step 3:
When dividing 424 by 66, we get 6 with a remainder of 28.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Deduct 396 from 424 and we're left with 28.
Bring next digit (3) of the dividend behind the 28 and repeat the process: 283 / 66

Going ahead to step 4:
283 divided by 66 is 4 with a remainder of 19.
Write down 4 as next digit of the result. 
Result so far: 64.0
If we subtract 264 from 283, we get 19.
Grab the next digit (1) from the dividend, add it to 19, then carry on: 191 / 66

On to step 5:
66 goes into 191 2 times with a remainder of 59.
Write down 2 as next digit of the result. 
Result so far: 642.0
Deduct 132 from 191 and we're left with 59.
Fetch the next digit (9) from the dividend, attach it to 59 and continue: 599 / 66

Moving on to step 6:
If we divide 599 by 66, we get 9 and a remainder of 5.
The number 9 becomes the next digit in our result. 
Result so far: 6429.0
If we take 594 away from 599, we end up with 5.
Take the next digit (2) from the dividend and append it to 5, then repeat: 52 / 66

Advancing to step 7:
66 goes into 52 0 times with a remainder of 52.
The next digit of our result is 0. 
Result so far: 64290.0
The remainder is 52 after subtracting 0 from 52.
Take the next digit (0) from the dividend and append it to 52, then repeat: 520 / 66

On to step 8:
When dividing 520 by 66, we get 7 with a remainder of 58.
Use 7 as the next digit of our solution. 
Result so far: 642907.0
Subtracting 462 from 520 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 9:
66 can be fit into 580 8 times, resulting in a remainder of 52.
The next digit of our result is 8. 
Result so far: 642907.8
If we take 528 away from 580, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 10:
When dividing 520 by 66, we get 7 with a remainder of 58.
Record the quotient 7 as the next digit in the result. 
Result so far: 642907.87
Subtracting 462 from 520 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 11:
66 goes into 580 8 times with a remainder of 52.
The next digit of our result is 8. 
Result so far: 642907.878
The remainder is 52 after subtracting 528 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 12:
520 divided by 66 is 7 with a remainder of 58.
Use 7 as the next digit of our solution. 
Result so far: 642907.8787
Subtracting 462 from 520 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Step 13:
The number 66 fits into 580 8 times, leaving a remainder of 52.
Record the quotient 8 as the next digit in the result. 
Result so far: 642907.87878
If we subtract 528 from 580, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 14:
If we divide 520 by 66, we get 7 and a remainder of 58.
The number 7 becomes the next digit in our result. 
Result so far: 642907.878787
If we take 462 away from 520, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 15:
66 goes into 580 8 times with a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 642907.8787878
Subtracting 528 from 580 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 16:
520 divided by 66 is 7 with a remainder of 58.
The number 7 becomes the next digit in our result. 
Result so far: 642907.87878787
Deduct 462 from 520 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

The quotient of the division is 642907.87878787, and the remainder is 5.8e-08.