We look at the division of 915984 by 43 
We want to figure out the number of times 915984 can be divided by 43.

Advancing to step 1:
When dividing 9 by 43, we get 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 43

Step 2:
43 can be fit into 91 2 times, resulting in a remainder of 5.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 86 from 91 and we're left with 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 43

Advancing to step 3:
The number 43 fits into 55 1 times, leaving a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 21.0
If we subtract 43 from 55, we get 12.
Append the next digit (9) from the dividend to 12 and continue with: 129 / 43

Going ahead to step 4:
129 divided by 43 is 3 with a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 213.0
The remainder is 0 after subtracting 129 from 129.
Fetch the next digit (8) from the dividend, attach it to 0 and continue: 8 / 43

On to step 5:
43 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 2130.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (4) of the dividend behind the 8 and repeat the process: 84 / 43

Moving on to step 6:
The number 43 fits into 84 1 times, leaving a remainder of 41.
Write down 1 as next digit of the result. 
Result so far: 21301.0
The remainder is 41 after subtracting 43 from 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Step 7:
When dividing 410 by 43, we get 9 with a remainder of 23.
Record the quotient 9 as the next digit in the result. 
Result so far: 21301.9
If we take 387 away from 410, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 8:
230 divided by 43 is 5 with a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 21301.95
Subtracting 215 from 230 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 9:
43 can be fit into 150 3 times, resulting in a remainder of 21.
Write down 3 as next digit of the result. 
Result so far: 21301.953
Deduct 129 from 150 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 10:
43 can be fit into 210 4 times, resulting in a remainder of 38.
Use 4 as the next digit of our solution. 
Result so far: 21301.9534
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.

Going ahead to step 11:
43 goes into 380 8 times with a remainder of 36.
The next digit of our result is 8. 
Result so far: 21301.95348
If we take 344 away from 380, we end up 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 12:
43 goes into 360 8 times with a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 21301.953488
Subtract 344 from 360 to get 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 21301.953488, with a leftover of 1.6e-06.