We look at the division of 391931 by 43 
Our goal is to divide 391931 by 43.

On to step 1:
The number 43 fits into 3 0 times, leaving a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 43

Advancing to step 2:
43 goes into 39 0 times with a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Append the next digit (1) from the dividend to 39 and continue with: 391 / 43

Moving on to step 3:
If we divide 391 by 43, we get 9 and a remainder of 4.
Put 9 as the next digit of the answer. 
Result so far: 9.0
The remainder is 4 after subtracting 387 from 391.
Append the next digit (9) from the dividend to 4 and continue with: 49 / 43

On to step 4:
When dividing 49 by 43, we get 1 with a remainder of 6.
The number 1 becomes the next digit in our result. 
Result so far: 91.0
If we subtract 43 from 49, we get 6.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 43

Moving on to step 5:
If we divide 63 by 43, we get 1 and a remainder of 20.
Use 1 as the next digit of our solution. 
Result so far: 911.0
Subtract 43 from 63 to get 20.
Include the next digit (1) from the dividend after 20, then repeat: 201 / 43

Step 6:
If we divide 201 by 43, we get 4 and a remainder of 29.
Record the quotient 4 as the next digit in the result. 
Result so far: 9114.0
Subtracting 172 from 201 leaves us with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Going ahead to step 7:
43 goes into 290 6 times with a remainder of 32.
The next digit of our result is 6. 
Result so far: 9114.6
If we subtract 258 from 290, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 8:
43 can be fit into 320 7 times, resulting in a remainder of 19.
The next digit of our result is 7. 
Result so far: 9114.67
If we subtract 301 from 320, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 9:
The number 43 fits into 190 4 times, leaving a remainder of 18.
Use 4 as the next digit of our solution. 
Result so far: 9114.674
Deduct 172 from 190 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 10:
180 divided by 43 is 4 with a remainder of 8.
The next digit of our result is 4. 
Result so far: 9114.6744
If we subtract 172 from 180, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final outcome is 9114.6744, with a leftover of 8e-05.