We're dividing 646904 by 72 
Our goal is to divide 646904 by 72.

Step 1:
72 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 72

Going ahead to step 2:
64 divided by 72 is 0 with a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 64 and we're left with 64.
Bring next digit (6) of the dividend behind the 64 and repeat the process: 646 / 72

Moving on to step 3:
The number 72 fits into 646 8 times, leaving a remainder of 70.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtract 576 from 646 to get 70.
Fetch the next digit (9) from the dividend, attach it to 70 and continue: 709 / 72

Advancing to step 4:
709 divided by 72 is 9 with a remainder of 61.
The next digit of our result is 9. 
Result so far: 89.0
The remainder is 61 after subtracting 648 from 709.
Grab the next digit (0) from the dividend, add it to 61, then carry on: 610 / 72

On to step 5:
72 can be fit into 610 8 times, resulting in a remainder of 34.
The number 8 becomes the next digit in our result. 
Result so far: 898.0
The remainder is 34 after subtracting 576 from 610.
Fetch the next digit (4) from the dividend, attach it to 34 and continue: 344 / 72

On to step 6:
344 divided by 72 is 4 with a remainder of 56.
The number 4 becomes the next digit in our result. 
Result so far: 8984.0
If we take 288 away from 344, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 7:
The number 72 fits into 560 7 times, leaving a remainder of 56.
Put 7 as the next digit of the answer. 
Result so far: 8984.7
If we take 504 away from 560, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 8:
72 can be fit into 560 7 times, resulting in a remainder of 56.
Use 7 as the next digit of our solution. 
Result so far: 8984.77
If we subtract 504 from 560, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

After the division, we end up with 8984.77 and a remainder of 0.056.