215926 ÷ 72 
We want to figure out the number of times 215926 can be divided by 72.

Moving on to step 1:
2 divided by 72 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 72

Going ahead to step 2:
72 goes into 21 0 times with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Include the next digit (5) from the dividend after 21, then repeat: 215 / 72

Moving on to step 3:
When dividing 215 by 72, we get 2 with a remainder of 71.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 144 from 215 to get 71.
Fetch the next digit (9) from the dividend, attach it to 71 and continue: 719 / 72

Going ahead to step 4:
The number 72 fits into 719 9 times, leaving a remainder of 71.
Put 9 as the next digit of the answer. 
Result so far: 29.0
If we take 648 away from 719, we end up with 71.
Include the next digit (2) from the dividend after 71, then repeat: 712 / 72

On to step 5:
712 divided by 72 is 9 with a remainder of 64.
The next digit of our result is 9. 
Result so far: 299.0
Deduct 648 from 712 and we're left with 64.
Bring next digit (6) of the dividend behind the 64 and repeat the process: 646 / 72

Going ahead to step 6:
72 can be fit into 646 8 times, resulting in a remainder of 70.
Record the quotient 8 as the next digit in the result. 
Result so far: 2998.0
If we subtract 576 from 646, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 7:
72 goes into 700 9 times with a remainder of 52.
The next digit of our result is 9. 
Result so far: 2998.9
If we subtract 648 from 700, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 8:
If we divide 520 by 72, we get 7 and a remainder of 16.
Use 7 as the next digit of our solution. 
Result so far: 2998.97
If we subtract 504 from 520, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 9:
72 goes into 160 2 times with a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 2998.972
If we take 144 away from 160, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 10:
72 goes into 160 2 times with a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 2998.9722
If we take 144 away from 160, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 2998.9722, with a leftover of 0.00016.