644232 divided by 72 
We're looking to find how many times 72 goes into 644232.

Let's proceed to step 1:
When dividing 6 by 72, we get 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 72

Moving on to step 2:
If we divide 64 by 72, we get 0 and 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.
Take the next digit (4) from the dividend and append it to 64, then repeat: 644 / 72

Going ahead to step 3:
The number 72 fits into 644 8 times, leaving a remainder of 68.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtracting 576 from 644 leaves us with 68.
Append the next digit (2) from the dividend to 68 and continue with: 682 / 72

Let's proceed to step 4:
72 can be fit into 682 9 times, resulting in a remainder of 34.
Use 9 as the next digit of our solution. 
Result so far: 89.0
Subtract 648 from 682 to get 34.
Grab the next digit (3) from the dividend, add it to 34, then carry on: 343 / 72

Advancing to step 5:
If we divide 343 by 72, we get 4 and a remainder of 55.
Put 4 as the next digit of the answer. 
Result so far: 894.0
If we take 288 away from 343, we end up with 55.
Take the next digit (2) from the dividend and append it to 55, then repeat: 552 / 72

Step 6:
If we divide 552 by 72, we get 7 and a remainder of 48.
Put 7 as the next digit of the answer. 
Result so far: 8947.0
If we subtract 504 from 552, we 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.

Step 7:
480 divided by 72 is 6 with a remainder of 48.
Record the quotient 6 as the next digit in the result. 
Result so far: 8947.6
Subtracting 432 from 480 leaves us 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.

Going ahead to step 8:
72 can be fit into 480 6 times, resulting in a remainder of 48.
The next digit of our result is 6. 
Result so far: 8947.66
The remainder is 48 after subtracting 432 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

After the division, we end up with 8947.66 and a remainder of 0.048.