Let's divide 42881393 by 503
We want to divide 42881393 by 503.

Going ahead to step 1:
503 can be fit into 4 0 times, resulting in a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 503

Going ahead to step 2:
503 goes into 42 0 times with 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.
Fetch the next digit (8) from the dividend, attach it to 42 and continue: 428 / 503

Going ahead to step 3:
The number 503 fits into 428 0 times, leaving a remainder of 428.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 428 and we're left with 428.
Include the next digit (8) from the dividend after 428, then repeat: 4288 / 503

On to step 4:
503 can be fit into 4288 8 times, resulting in a remainder of 264.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtracting 4024 from 4288 leaves us with 264.
Take the next digit (1) from the dividend and append it to 264, then repeat: 2641 / 503

Advancing to step 5:
503 can be fit into 2641 5 times, resulting in a remainder of 126.
Put 5 as the next digit of the answer. 
Result so far: 85.0
The remainder is 126 after subtracting 2515 from 2641.
Take the next digit (3) from the dividend and append it to 126, then repeat: 1263 / 503

Advancing to step 6:
503 goes into 1263 2 times with a remainder of 257.
Record the quotient 2 as the next digit in the result. 
Result so far: 852.0
Subtract 1006 from 1263 to get 257.
Take the next digit (9) from the dividend and append it to 257, then repeat: 2579 / 503

Advancing to step 7:
503 can be fit into 2579 5 times, resulting in a remainder of 64.
Put 5 as the next digit of the answer. 
Result so far: 8525.0
The remainder is 64 after subtracting 2515 from 2579.
Append the next digit (3) from the dividend to 64 and continue with: 643 / 503

Advancing to step 8:
503 can be fit into 643 1 times, resulting in a remainder of 140.
The next digit of our result is 1. 
Result so far: 85251.0
Subtract 503 from 643 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Moving on to step 9:
503 can be fit into 1400 2 times, resulting in a remainder of 394.
Record the quotient 2 as the next digit in the result. 
Result so far: 85251.2
Subtracting 1006 from 1400 leaves us with 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Going ahead to step 10:
3940 divided by 503 is 7 with a remainder of 419.
The next digit of our result is 7. 
Result so far: 85251.27
The remainder is 419 after subtracting 3521 from 3940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4190, and continue the process.

Step 11:
If we divide 4190 by 503, we get 8 and a remainder of 166.
Record the quotient 8 as the next digit in the result. 
Result so far: 85251.278
The remainder is 166 after subtracting 4024 from 4190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Advancing to step 12:
503 can be fit into 1660 3 times, resulting in a remainder of 151.
Write down 3 as next digit of the result. 
Result so far: 85251.2783
If we take 1509 away from 1660, we end up with 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Moving on to step 13:
1510 divided by 503 is 3 with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 85251.27833
Deduct 1509 from 1510 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final outcome is 85251.27833, with a leftover of 1e-06.