781912 ÷ 72 
We're looking to find how many times 72 goes into 781912.

On to step 1:
The number 72 fits into 7 0 times, leaving a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 72

Advancing to step 2:
When dividing 78 by 72, we get 1 with a remainder of 6.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 72 from 78 and we're left with 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 72

Advancing to step 3:
If we divide 61 by 72, we get 0 and a remainder of 61.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Deduct 0 from 61 and we're left with 61.
Fetch the next digit (9) from the dividend, attach it to 61 and continue: 619 / 72

Step 4:
72 goes into 619 8 times with a remainder of 43.
The next digit of our result is 8. 
Result so far: 108.0
Deduct 576 from 619 and we're left with 43.
Include the next digit (1) from the dividend after 43, then repeat: 431 / 72

Going ahead to step 5:
431 divided by 72 is 5 with a remainder of 71.
The number 5 becomes the next digit in our result. 
Result so far: 1085.0
Subtracting 360 from 431 leaves us with 71.
Fetch the next digit (2) from the dividend, attach it to 71 and continue: 712 / 72

Going ahead to step 6:
If we divide 712 by 72, we get 9 and a remainder of 64.
Put 9 as the next digit of the answer. 
Result so far: 10859.0
Subtract 648 from 712 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 7:
72 goes into 640 8 times with a remainder of 64.
Record the quotient 8 as the next digit in the result. 
Result so far: 10859.8
Deduct 576 from 640 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 8:
72 goes into 640 8 times with a remainder of 64.
Put 8 as the next digit of the answer. 
Result so far: 10859.88
If we take 576 away from 640, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The final result is 10859.88 with a remainder of 0.064.