Let's divide 42086814 by 488
We want to figure out the number of times 42086814 can be divided by 488.

On to step 1:
488 goes into 4 0 times with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 488

Going ahead to step 2:
42 divided by 488 is 0 with a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 42, we get 42.
Take the next digit (0) from the dividend and append it to 42, then repeat: 420 / 488

Advancing to step 3:
488 can be fit into 420 0 times, resulting in a remainder of 420.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 420, we end up with 420.
Append the next digit (8) from the dividend to 420 and continue with: 4208 / 488

Advancing to step 4:
If we divide 4208 by 488, we get 8 and a remainder of 304.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
The remainder is 304 after subtracting 3904 from 4208.
Bring next digit (6) of the dividend behind the 304 and repeat the process: 3046 / 488

Step 5:
488 goes into 3046 6 times with a remainder of 118.
Put 6 as the next digit of the answer. 
Result so far: 86.0
If we take 2928 away from 3046, we end up with 118.
Take the next digit (8) from the dividend and append it to 118, then repeat: 1188 / 488

Step 6:
488 can be fit into 1188 2 times, resulting in a remainder of 212.
Put 2 as the next digit of the answer. 
Result so far: 862.0
Subtracting 976 from 1188 leaves us with 212.
Take the next digit (1) from the dividend and append it to 212, then repeat: 2121 / 488

On to step 7:
488 can be fit into 2121 4 times, resulting in a remainder of 169.
Write down 4 as next digit of the result. 
Result so far: 8624.0
Deduct 1952 from 2121 and we're left with 169.
Include the next digit (4) from the dividend after 169, then repeat: 1694 / 488

Going ahead to step 8:
488 can be fit into 1694 3 times, resulting in a remainder of 230.
Record the quotient 3 as the next digit in the result. 
Result so far: 86243.0
Subtract 1464 from 1694 to get 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

On to step 9:
If we divide 2300 by 488, we get 4 and a remainder of 348.
The next digit of our result is 4. 
Result so far: 86243.4
If we take 1952 away from 2300, we end up with 348.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

Going ahead to step 10:
488 can be fit into 3480 7 times, resulting in a remainder of 64.
The number 7 becomes the next digit in our result. 
Result so far: 86243.47
Deduct 3416 from 3480 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 11:
If we divide 640 by 488, we get 1 and a remainder of 152.
Put 1 as the next digit of the answer. 
Result so far: 86243.471
If we subtract 488 from 640, we get 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Advancing to step 12:
488 can be fit into 1520 3 times, resulting in a remainder of 56.
Put 3 as the next digit of the answer. 
Result so far: 86243.4713
Subtract 1464 from 1520 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 13:
When dividing 560 by 488, we get 1 with a remainder of 72.
Use 1 as the next digit of our solution. 
Result so far: 86243.47131
If we take 488 away from 560, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 14:
The number 488 fits into 720 1 times, leaving a remainder of 232.
The number 1 becomes the next digit in our result. 
Result so far: 86243.471311
The remainder is 232 after subtracting 488 from 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

The final outcome is 86243.471311, with a leftover of 2.32e-05.