We look at the division of 39212560 by 915 
We're looking to find how many times 915 goes into 39212560.

Moving on to step 1:
If we divide 3 by 915, we get 0 and a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 915

On to step 2:
915 goes into 39 0 times with a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Grab the next digit (2) from the dividend, add it to 39, then carry on: 392 / 915

Step 3:
The number 915 fits into 392 0 times, leaving a remainder of 392.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 392 after subtracting 0 from 392.
Fetch the next digit (1) from the dividend, attach it to 392 and continue: 3921 / 915

Moving on to step 4:
915 can be fit into 3921 4 times, resulting in a remainder of 261.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we subtract 3660 from 3921, we get 261.
Include the next digit (2) from the dividend after 261, then repeat: 2612 / 915

Step 5:
The number 915 fits into 2612 2 times, leaving a remainder of 782.
Write down 2 as next digit of the result. 
Result so far: 42.0
Subtract 1830 from 2612 to get 782.
Fetch the next digit (5) from the dividend, attach it to 782 and continue: 7825 / 915

Moving on to step 6:
If we divide 7825 by 915, we get 8 and a remainder of 505.
The next digit of our result is 8. 
Result so far: 428.0
The remainder is 505 after subtracting 7320 from 7825.
Append the next digit (6) from the dividend to 505 and continue with: 5056 / 915

Advancing to step 7:
If we divide 5056 by 915, we get 5 and a remainder of 481.
The next digit of our result is 5. 
Result so far: 4285.0
The remainder is 481 after subtracting 4575 from 5056.
Fetch the next digit (0) from the dividend, attach it to 481 and continue: 4810 / 915

Let's proceed to step 8:
If we divide 4810 by 915, we get 5 and a remainder of 235.
The next digit of our result is 5. 
Result so far: 42855.0
Deduct 4575 from 4810 and we're left with 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Let's proceed to step 9:
915 can be fit into 2350 2 times, resulting in a remainder of 520.
Record the quotient 2 as the next digit in the result. 
Result so far: 42855.2
Subtract 1830 from 2350 to get 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

On to step 10:
915 goes into 5200 5 times with a remainder of 625.
Write down 5 as next digit of the result. 
Result so far: 42855.25
The remainder is 625 after subtracting 4575 from 5200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6250, and continue the process.

Step 11:
If we divide 6250 by 915, we get 6 and a remainder of 760.
Use 6 as the next digit of our solution. 
Result so far: 42855.256
Subtract 5490 from 6250 to get 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

Step 12:
915 goes into 7600 8 times with a remainder of 280.
The next digit of our result is 8. 
Result so far: 42855.2568
Subtract 7320 from 7600 to get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Step 13:
2800 divided by 915 is 3 with a remainder of 55.
The number 3 becomes the next digit in our result. 
Result so far: 42855.25683
Subtracting 2745 from 2800 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 14:
If we divide 550 by 915, we get 0 and a remainder of 550.
The number 0 becomes the next digit in our result. 
Result so far: 42855.25683
If we subtract 0 from 550, we get 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Step 15:
915 goes into 5500 6 times with a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 42855.2568306
If we subtract 5490 from 5500, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 16:
915 goes into 100 0 times with a remainder of 100.
Put 0 as the next digit of the answer. 
Result so far: 42855.2568306
If we subtract 0 from 100, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

After the division, we end up with 42855.2568306 and a remainder of 1e-07.