We look at the division of 42707990 by 803 
Let's see how many times 803 fits into 42707990.

Advancing to step 1:
803 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 803

Step 2:
803 goes into 42 0 times with a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 42, we get 42.
Fetch the next digit (7) from the dividend, attach it to 42 and continue: 427 / 803

On to step 3:
If we divide 427 by 803, we get 0 and a remainder of 427.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 427, we get 427.
Take the next digit (0) from the dividend and append it to 427, then repeat: 4270 / 803

Going ahead to step 4:
803 can be fit into 4270 5 times, resulting in a remainder of 255.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Deduct 4015 from 4270 and we're left with 255.
Grab the next digit (7) from the dividend, add it to 255, then carry on: 2557 / 803

Advancing to step 5:
2557 divided by 803 is 3 with a remainder of 148.
Record the quotient 3 as the next digit in the result. 
Result so far: 53.0
If we take 2409 away from 2557, we end up with 148.
Append the next digit (9) from the dividend to 148 and continue with: 1489 / 803

Moving on to step 6:
803 goes into 1489 1 times with a remainder of 686.
Put 1 as the next digit of the answer. 
Result so far: 531.0
Subtracting 803 from 1489 leaves us with 686.
Fetch the next digit (9) from the dividend, attach it to 686 and continue: 6869 / 803

Moving on to step 7:
If we divide 6869 by 803, we get 8 and a remainder of 445.
Write down 8 as next digit of the result. 
Result so far: 5318.0
If we take 6424 away from 6869, we end up with 445.
Fetch the next digit (0) from the dividend, attach it to 445 and continue: 4450 / 803

Advancing to step 8:
803 can be fit into 4450 5 times, resulting in a remainder of 435.
The next digit of our result is 5. 
Result so far: 53185.0
If we subtract 4015 from 4450, we get 435.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4350, and continue the process.

Let's proceed to step 9:
The number 803 fits into 4350 5 times, leaving a remainder of 335.
Record the quotient 5 as the next digit in the result. 
Result so far: 53185.5
The remainder is 335 after subtracting 4015 from 4350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3350, and continue the process.

Going ahead to step 10:
803 can be fit into 3350 4 times, resulting in a remainder of 138.
Use 4 as the next digit of our solution. 
Result so far: 53185.54
Subtracting 3212 from 3350 leaves us with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Advancing to step 11:
1380 divided by 803 is 1 with a remainder of 577.
Write down 1 as next digit of the result. 
Result so far: 53185.541
Deduct 803 from 1380 and we're left with 577.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5770, and continue the process.

Let's proceed to step 12:
803 goes into 5770 7 times with a remainder of 149.
Put 7 as the next digit of the answer. 
Result so far: 53185.5417
Subtracting 5621 from 5770 leaves us with 149.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Going ahead to step 13:
The number 803 fits into 1490 1 times, leaving a remainder of 687.
The next digit of our result is 1. 
Result so far: 53185.54171
Subtracting 803 from 1490 leaves us with 687.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6870, and continue the process.

Advancing to step 14:
6870 divided by 803 is 8 with a remainder of 446.
Use 8 as the next digit of our solution. 
Result so far: 53185.541718
Subtract 6424 from 6870 to get 446.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

Moving on to step 15:
803 can be fit into 4460 5 times, resulting in a remainder of 445.
Record the quotient 5 as the next digit in the result. 
Result so far: 53185.5417185
Subtract 4015 from 4460 to get 445.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4450, and continue the process.

Advancing to step 16:
If we divide 4450 by 803, we get 5 and a remainder of 435.
The next digit of our result is 5. 
Result so far: 53185.54171855
Subtracting 4015 from 4450 leaves us with 435.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4350, and continue the process.

The quotient of the division is 53185.54171855, and the remainder is 4.35e-07.