321144 divided by 72 
Our goal is to divide 321144 by 72.

Let's proceed to step 1:
72 can be fit into 3 0 times, resulting in a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Include the next digit (2) from the dividend after 3, then repeat: 32 / 72

On to step 2:
32 divided by 72 is 0 with a remainder of 32.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 32, we end up with 32.
Include the next digit (1) from the dividend after 32, then repeat: 321 / 72

Moving on to step 3:
When dividing 321 by 72, we get 4 with a remainder of 33.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 33 after subtracting 288 from 321.
Include the next digit (1) from the dividend after 33, then repeat: 331 / 72

Advancing to step 4:
72 goes into 331 4 times with a remainder of 43.
Put 4 as the next digit of the answer. 
Result so far: 44.0
If we take 288 away from 331, we end up with 43.
Bring next digit (4) of the dividend behind the 43 and repeat the process: 434 / 72

Going ahead to step 5:
434 divided by 72 is 6 with a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 446.0
If we take 432 away from 434, we end up with 2.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 72

Moving on to step 6:
The number 72 fits into 24 0 times, leaving a remainder of 24.
Put 0 as the next digit of the answer. 
Result so far: 4460.0
If we subtract 0 from 24, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 7:
72 can be fit into 240 3 times, resulting in a remainder of 24.
The next digit of our result is 3. 
Result so far: 4460.3
Subtract 216 from 240 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 8:
240 divided by 72 is 3 with a remainder of 24.
Record the quotient 3 as the next digit in the result. 
Result so far: 4460.33
The remainder is 24 after subtracting 216 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

In conclusion, the division gives 4460.33 with a balance of 0.024.