20561 divided by 72 
We want to figure out the number of times 20561 can be divided by 72.

Going ahead to step 1:
72 can be fit into 2 0 times, resulting in a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 72

Step 2:
The number 72 fits into 20 0 times, leaving a remainder of 20.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Include the next digit (5) from the dividend after 20, then repeat: 205 / 72

Moving on to step 3:
72 can be fit into 205 2 times, resulting in a remainder of 61.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 144 away from 205, we end up with 61.
Bring next digit (6) of the dividend behind the 61 and repeat the process: 616 / 72

On to step 4:
616 divided by 72 is 8 with a remainder of 40.
The number 8 becomes the next digit in our result. 
Result so far: 28.0
The remainder is 40 after subtracting 576 from 616.
Fetch the next digit (1) from the dividend, attach it to 40 and continue: 401 / 72

Let's proceed to step 5:
When dividing 401 by 72, we get 5 with a remainder of 41.
The next digit of our result is 5. 
Result so far: 285.0
The remainder is 41 after subtracting 360 from 401.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Let's proceed to step 6:
72 can be fit into 410 5 times, resulting in a remainder of 50.
The next digit of our result is 5. 
Result so far: 285.5
Subtracting 360 from 410 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 7:
If we divide 500 by 72, we get 6 and a remainder of 68.
Write down 6 as next digit of the result. 
Result so far: 285.56
Subtract 432 from 500 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 8:
680 divided by 72 is 9 with a remainder of 32.
The next digit of our result is 9. 
Result so far: 285.569
Subtract 648 from 680 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 9:
320 divided by 72 is 4 with a remainder of 32.
Write down 4 as next digit of the result. 
Result so far: 285.5694
Subtract 288 from 320 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 10:
72 goes into 320 4 times with a remainder of 32.
Use 4 as the next digit of our solution. 
Result so far: 285.56944
Subtract 288 from 320 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

In conclusion, the division gives 285.56944 with a balance of 3.2e-05.