We look at the division of 12870912 by 72 
Let's see how many times 72 fits into 12870912.

Going ahead to step 1:
1 divided by 72 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 72

Step 2:
When dividing 12 by 72, we get 0 with a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Include the next digit (8) from the dividend after 12, then repeat: 128 / 72

Moving on to step 3:
If we divide 128 by 72, we get 1 and a remainder of 56.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 72 from 128 leaves us with 56.
Take the next digit (7) from the dividend and append it to 56, then repeat: 567 / 72

Advancing to step 4:
72 goes into 567 7 times with a remainder of 63.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
The remainder is 63 after subtracting 504 from 567.
Bring next digit (0) of the dividend behind the 63 and repeat the process: 630 / 72

Advancing to step 5:
630 divided by 72 is 8 with a remainder of 54.
Record the quotient 8 as the next digit in the result. 
Result so far: 178.0
Deduct 576 from 630 and we're left with 54.
Append the next digit (9) from the dividend to 54 and continue with: 549 / 72

Let's proceed to step 6:
When dividing 549 by 72, we get 7 with a remainder of 45.
Write down 7 as next digit of the result. 
Result so far: 1787.0
The remainder is 45 after subtracting 504 from 549.
Grab the next digit (1) from the dividend, add it to 45, then carry on: 451 / 72

Advancing to step 7:
72 goes into 451 6 times with a remainder of 19.
Write down 6 as next digit of the result. 
Result so far: 17876.0
If we subtract 432 from 451, we get 19.
Include the next digit (2) from the dividend after 19, then repeat: 192 / 72

Moving on to step 8:
192 divided by 72 is 2 with a remainder of 48.
The number 2 becomes the next digit in our result. 
Result so far: 178762.0
Subtract 144 from 192 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 9:
If we divide 480 by 72, we get 6 and a remainder of 48.
Use 6 as the next digit of our solution. 
Result so far: 178762.6
Subtract 432 from 480 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 10:
If we divide 480 by 72, we get 6 and a remainder of 48.
Write down 6 as next digit of the result. 
Result so far: 178762.66
If we take 432 away from 480, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Our division results in 178762.66 with a remaining 0.048.