We're dividing 518790 by 43 
We want to divide 518790 by 43.

Step 1:
43 can be fit into 5 0 times, resulting in a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 43

On to step 2:
If we divide 51 by 43, we get 1 and a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 43 away from 51, we end up with 8.
Take the next digit (8) from the dividend and append it to 8, then repeat: 88 / 43

Advancing to step 3:
43 goes into 88 2 times with a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 12.0
If we take 86 away from 88, we end up with 2.
Bring next digit (7) of the dividend behind the 2 and repeat the process: 27 / 43

Moving on to step 4:
43 can be fit into 27 0 times, resulting in a remainder of 27.
Put 0 as the next digit of the answer. 
Result so far: 120.0
If we take 0 away from 27, we end up with 27.
Take the next digit (9) from the dividend and append it to 27, then repeat: 279 / 43

Let's proceed to step 5:
43 goes into 279 6 times with a remainder of 21.
Write down 6 as next digit of the result. 
Result so far: 1206.0
If we take 258 away from 279, we end up with 21.
Include the next digit (0) from the dividend after 21, then repeat: 210 / 43

On to step 6:
If we divide 210 by 43, we get 4 and a remainder of 38.
The number 4 becomes the next digit in our result. 
Result so far: 12064.0
If we take 172 away from 210, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 7:
The number 43 fits into 380 8 times, leaving a remainder of 36.
Record the quotient 8 as the next digit in the result. 
Result so far: 12064.8
Subtracting 344 from 380 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 8:
If we divide 360 by 43, we get 8 and a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 12064.88
Deduct 344 from 360 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 12064.88, with a leftover of 0.016.