573021 ÷ 72 
We want to figure out the number of times 573021 can be divided by 72.

Advancing to step 1:
The number 72 fits into 5 0 times, leaving a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (7) from the dividend, attach it to 5 and continue: 57 / 72

Advancing to step 2:
When dividing 57 by 72, we get 0 with a remainder of 57.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 57 and we're left with 57.
Fetch the next digit (3) from the dividend, attach it to 57 and continue: 573 / 72

Let's proceed to step 3:
573 divided by 72 is 7 with a remainder of 69.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtracting 504 from 573 leaves us with 69.
Fetch the next digit (0) from the dividend, attach it to 69 and continue: 690 / 72

On to step 4:
When dividing 690 by 72, we get 9 with a remainder of 42.
Record the quotient 9 as the next digit in the result. 
Result so far: 79.0
If we subtract 648 from 690, we get 42.
Bring next digit (2) of the dividend behind the 42 and repeat the process: 422 / 72

Step 5:
72 can be fit into 422 5 times, resulting in a remainder of 62.
Record the quotient 5 as the next digit in the result. 
Result so far: 795.0
If we subtract 360 from 422, we get 62.
Take the next digit (1) from the dividend and append it to 62, then repeat: 621 / 72

Step 6:
72 can be fit into 621 8 times, resulting in a remainder of 45.
Write down 8 as next digit of the result. 
Result so far: 7958.0
Subtracting 576 from 621 leaves us with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 7:
72 can be fit into 450 6 times, resulting in a remainder of 18.
Use 6 as the next digit of our solution. 
Result so far: 7958.6
The remainder is 18 after subtracting 432 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 8:
180 divided by 72 is 2 with a remainder of 36.
The next digit of our result is 2. 
Result so far: 7958.62
Deduct 144 from 180 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 9:
72 can be fit into 360 5 times, resulting in a remainder of 0.
The next digit of our result is 5. 
Result so far: 7958.625
The remainder is 0 after subtracting 360 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 10:
72 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 7958.625
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 11:
72 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 7958.625
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 7958.625, with a leftover of 0.0.