Let's divide 42421876 by 669
We want to divide 42421876 by 669.

On to step 1:
The number 669 fits into 4 0 times, leaving 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.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 669

Step 2:
The number 669 fits into 42 0 times, leaving a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 42 and we're left with 42.
Fetch the next digit (4) from the dividend, attach it to 42 and continue: 424 / 669

Advancing to step 3:
If we divide 424 by 669, we get 0 and a remainder of 424.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 424, we get 424.
Fetch the next digit (2) from the dividend, attach it to 424 and continue: 4242 / 669

Going ahead to step 4:
669 can be fit into 4242 6 times, resulting in a remainder of 228.
The next digit of our result is 6. 
Result so far: 6.0
Subtract 4014 from 4242 to get 228.
Grab the next digit (1) from the dividend, add it to 228, then carry on: 2281 / 669

Advancing to step 5:
If we divide 2281 by 669, we get 3 and a remainder of 274.
Record the quotient 3 as the next digit in the result. 
Result so far: 63.0
Deduct 2007 from 2281 and we're left with 274.
Bring next digit (8) of the dividend behind the 274 and repeat the process: 2748 / 669

Moving on to step 6:
669 goes into 2748 4 times with a remainder of 72.
The next digit of our result is 4. 
Result so far: 634.0
If we take 2676 away from 2748, we end up with 72.
Grab the next digit (7) from the dividend, add it to 72, then carry on: 727 / 669

On to step 7:
669 can be fit into 727 1 times, resulting in a remainder of 58.
The next digit of our result is 1. 
Result so far: 6341.0
The remainder is 58 after subtracting 669 from 727.
Take the next digit (6) from the dividend and append it to 58, then repeat: 586 / 669

Step 8:
586 divided by 669 is 0 with a remainder of 586.
Use 0 as the next digit of our solution. 
Result so far: 63410.0
Subtracting 0 from 586 leaves us with 586.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5860, and continue the process.

On to step 9:
5860 divided by 669 is 8 with a remainder of 508.
Use 8 as the next digit of our solution. 
Result so far: 63410.8
The remainder is 508 after subtracting 5352 from 5860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5080, and continue the process.

Going ahead to step 10:
The number 669 fits into 5080 7 times, leaving a remainder of 397.
Write down 7 as next digit of the result. 
Result so far: 63410.87
Subtracting 4683 from 5080 leaves us with 397.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3970, and continue the process.

On to step 11:
If we divide 3970 by 669, we get 5 and a remainder of 625.
Write down 5 as next digit of the result. 
Result so far: 63410.875
Subtracting 3345 from 3970 leaves us with 625.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6250, and continue the process.

Moving on to step 12:
If we divide 6250 by 669, we get 9 and a remainder of 229.
The next digit of our result is 9. 
Result so far: 63410.8759
The remainder is 229 after subtracting 6021 from 6250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2290, and continue the process.

Advancing to step 13:
The number 669 fits into 2290 3 times, leaving a remainder of 283.
Use 3 as the next digit of our solution. 
Result so far: 63410.87593
Deduct 2007 from 2290 and we're left with 283.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2830, and continue the process.

On to step 14:
The number 669 fits into 2830 4 times, leaving a remainder of 154.
Put 4 as the next digit of the answer. 
Result so far: 63410.875934
The remainder is 154 after subtracting 2676 from 2830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Step 15:
669 can be fit into 1540 2 times, resulting in a remainder of 202.
The next digit of our result is 2. 
Result so far: 63410.8759342
Deduct 1338 from 1540 and we're left with 202.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

On to step 16:
669 can be fit into 2020 3 times, resulting in a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 63410.87593423
If we subtract 2007 from 2020, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

In conclusion, the division gives 63410.87593423 with a balance of 1.3e-08.