We're dividing 243588 by 72 
We're looking to find how many times 72 goes into 243588.

Step 1:
If we divide 2 by 72, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Include the next digit (4) from the dividend after 2, then repeat: 24 / 72

Moving on to step 2:
The number 72 fits into 24 0 times, leaving a remainder of 24.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 24 leaves us with 24.
Bring next digit (3) of the dividend behind the 24 and repeat the process: 243 / 72

Advancing to step 3:
When dividing 243 by 72, we get 3 with a remainder of 27.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 216 from 243, we get 27.
Append the next digit (5) from the dividend to 27 and continue with: 275 / 72

Moving on to step 4:
When dividing 275 by 72, we get 3 with a remainder of 59.
Write down 3 as next digit of the result. 
Result so far: 33.0
The remainder is 59 after subtracting 216 from 275.
Include the next digit (8) from the dividend after 59, then repeat: 598 / 72

On to step 5:
If we divide 598 by 72, we get 8 and a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 338.0
Deduct 576 from 598 and we're left with 22.
Grab the next digit (8) from the dividend, add it to 22, then carry on: 228 / 72

Going ahead to step 6:
The number 72 fits into 228 3 times, leaving a remainder of 12.
Use 3 as the next digit of our solution. 
Result so far: 3383.0
If we subtract 216 from 228, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 7:
The number 72 fits into 120 1 times, leaving a remainder of 48.
Put 1 as the next digit of the answer. 
Result so far: 3383.1
Deduct 72 from 120 and we're left 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.

Step 8:
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: 3383.16
Deduct 432 from 480 and we're left 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 9:
If we divide 480 by 72, we get 6 and a remainder of 48.
Write down 6 as next digit of the result. 
Result so far: 3383.166
If we subtract 432 from 480, 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.

The final outcome is 3383.166, with a leftover of 0.0048.