We look at the division of 42160445 by 518 
Our goal is to divide 42160445 by 518.

On to step 1:
When dividing 4 by 518, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 518

Let's proceed to step 2:
If we divide 42 by 518, we get 0 and a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Grab the next digit (1) from the dividend, add it to 42, then carry on: 421 / 518

Going ahead to step 3:
518 can be fit into 421 0 times, resulting in a remainder of 421.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 421, we get 421.
Append the next digit (6) from the dividend to 421 and continue with: 4216 / 518

Going ahead to step 4:
The number 518 fits into 4216 8 times, leaving a remainder of 72.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtracting 4144 from 4216 leaves us with 72.
Grab the next digit (0) from the dividend, add it to 72, then carry on: 720 / 518

Moving on to step 5:
The number 518 fits into 720 1 times, leaving a remainder of 202.
Write down 1 as next digit of the result. 
Result so far: 81.0
Subtract 518 from 720 to get 202.
Take the next digit (4) from the dividend and append it to 202, then repeat: 2024 / 518

Advancing to step 6:
The number 518 fits into 2024 3 times, leaving a remainder of 470.
Write down 3 as next digit of the result. 
Result so far: 813.0
Deduct 1554 from 2024 and we're left with 470.
Bring next digit (4) of the dividend behind the 470 and repeat the process: 4704 / 518

Advancing to step 7:
If we divide 4704 by 518, we get 9 and a remainder of 42.
Record the quotient 9 as the next digit in the result. 
Result so far: 8139.0
Deduct 4662 from 4704 and we're left with 42.
Fetch the next digit (5) from the dividend, attach it to 42 and continue: 425 / 518

Moving on to step 8:
When dividing 425 by 518, we get 0 with a remainder of 425.
Record the quotient 0 as the next digit in the result. 
Result so far: 81390.0
Subtracting 0 from 425 leaves us with 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Let's proceed to step 9:
The number 518 fits into 4250 8 times, leaving a remainder of 106.
The number 8 becomes the next digit in our result. 
Result so far: 81390.8
If we subtract 4144 from 4250, we get 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Moving on to step 10:
The number 518 fits into 1060 2 times, leaving a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 81390.82
Subtracting 1036 from 1060 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 11:
If we divide 240 by 518, we get 0 and a remainder of 240.
The number 0 becomes the next digit in our result. 
Result so far: 81390.82
If we subtract 0 from 240, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Let's proceed to step 12:
If we divide 2400 by 518, we get 4 and a remainder of 328.
The number 4 becomes the next digit in our result. 
Result so far: 81390.8204
If we take 2072 away from 2400, we end up with 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Moving on to step 13:
518 can be fit into 3280 6 times, resulting in a remainder of 172.
Write down 6 as next digit of the result. 
Result so far: 81390.82046
If we take 3108 away from 3280, we end up with 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Advancing to step 14:
1720 divided by 518 is 3 with a remainder of 166.
Put 3 as the next digit of the answer. 
Result so far: 81390.820463
The remainder is 166 after subtracting 1554 from 1720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Moving on to step 15:
518 goes into 1660 3 times with a remainder of 106.
The next digit of our result is 3. 
Result so far: 81390.8204633
The remainder is 106 after subtracting 1554 from 1660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Our division results in 81390.8204633 with a remaining 1.06e-06.