We're dividing 400272 by 72 
Let's see how many times 72 fits into 400272.

Let's proceed to step 1:
When dividing 4 by 72, we get 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 72

Step 2:
If we divide 40 by 72, we get 0 and a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 40, we get 40.
Include the next digit (0) from the dividend after 40, then repeat: 400 / 72

Going ahead to step 3:
When dividing 400 by 72, we get 5 with a remainder of 40.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we take 360 away from 400, we end up with 40.
Append the next digit (2) from the dividend to 40 and continue with: 402 / 72

Moving on to step 4:
72 goes into 402 5 times with a remainder of 42.
The number 5 becomes the next digit in our result. 
Result so far: 55.0
If we take 360 away from 402, we end up with 42.
Append the next digit (7) from the dividend to 42 and continue with: 427 / 72

Step 5:
If we divide 427 by 72, we get 5 and a remainder of 67.
Record the quotient 5 as the next digit in the result. 
Result so far: 555.0
Deduct 360 from 427 and we're left with 67.
Include the next digit (2) from the dividend after 67, then repeat: 672 / 72

Advancing to step 6:
When dividing 672 by 72, we get 9 with a remainder of 24.
The number 9 becomes the next digit in our result. 
Result so far: 5559.0
Deduct 648 from 672 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 7:
72 can be fit into 240 3 times, resulting in a remainder of 24.
The number 3 becomes the next digit in our result. 
Result so far: 5559.3
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.

Advancing to step 8:
The number 72 fits into 240 3 times, leaving a remainder of 24.
Use 3 as the next digit of our solution. 
Result so far: 5559.33
If we subtract 216 from 240, 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.

The final outcome is 5559.33, with a leftover of 0.024.