We look at the division of 31392 by 43 
We're looking to find how many times 43 goes into 31392.

Advancing to step 1:
If we divide 3 by 43, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 43

Step 2:
43 goes into 31 0 times with a remainder of 31.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 31 and we're left with 31.
Take the next digit (3) from the dividend and append it to 31, then repeat: 313 / 43

Going ahead to step 3:
The number 43 fits into 313 7 times, leaving a remainder of 12.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we subtract 301 from 313, we get 12.
Bring next digit (9) of the dividend behind the 12 and repeat the process: 129 / 43

On to step 4:
If we divide 129 by 43, we get 3 and a remainder of 0.
Use 3 as the next digit of our solution. 
Result so far: 73.0
Subtract 129 from 129 to get 0.
Take the next digit (2) from the dividend and append it to 0, then repeat: 2 / 43

On to step 5:
43 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 730.0
Subtract 0 from 2 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 6:
43 goes into 20 0 times with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 730.0
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 7:
43 can be fit into 200 4 times, resulting in a remainder of 28.
Use 4 as the next digit of our solution. 
Result so far: 730.04
Deduct 172 from 200 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 8:
If we divide 280 by 43, we get 6 and a remainder of 22.
Write down 6 as next digit of the result. 
Result so far: 730.046
Subtract 258 from 280 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 9:
When dividing 220 by 43, we get 5 with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 730.0465
If we take 215 away from 220, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 10:
43 can be fit into 50 1 times, resulting in a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 730.04651
Subtracting 43 from 50 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 11:
43 can be fit into 70 1 times, resulting in a remainder of 27.
Write down 1 as next digit of the result. 
Result so far: 730.046511
Deduct 43 from 70 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

The final result is 730.046511 with a remainder of 2.7e-06.