We look at the division of 843942 by 43 
We want to figure out the number of times 843942 can be divided by 43.

Going ahead to step 1:
When dividing 8 by 43, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (4) from the dividend after 8, then repeat: 84 / 43

On to step 2:
When dividing 84 by 43, we get 1 with a remainder of 41.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 43 from 84 leaves us with 41.
Bring next digit (3) of the dividend behind the 41 and repeat the process: 413 / 43

Going ahead to step 3:
When dividing 413 by 43, we get 9 with a remainder of 26.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
Subtracting 387 from 413 leaves us with 26.
Grab the next digit (9) from the dividend, add it to 26, then carry on: 269 / 43

Let's proceed to step 4:
269 divided by 43 is 6 with a remainder of 11.
Put 6 as the next digit of the answer. 
Result so far: 196.0
If we subtract 258 from 269, we get 11.
Fetch the next digit (4) from the dividend, attach it to 11 and continue: 114 / 43

Moving on to step 5:
If we divide 114 by 43, we get 2 and a remainder of 28.
Use 2 as the next digit of our solution. 
Result so far: 1962.0
If we take 86 away from 114, we end up with 28.
Take the next digit (2) from the dividend and append it to 28, then repeat: 282 / 43

Going ahead to step 6:
43 can be fit into 282 6 times, resulting in a remainder of 24.
The number 6 becomes the next digit in our result. 
Result so far: 19626.0
Deduct 258 from 282 and we're left 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.

Moving on to step 7:
240 divided by 43 is 5 with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 19626.5
If we subtract 215 from 240, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 8:
When dividing 250 by 43, we get 5 with a remainder of 35.
Write down 5 as next digit of the result. 
Result so far: 19626.55
Deduct 215 from 250 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Our division results in 19626.55 with a remaining 0.035.