57021 ÷ 1 
Our goal is to divide 57021 by 1.

Let's proceed to step 1:
5 divided by 1 is 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 5.0
If we take 5 away from 5, we end up with 0.
Take the next digit (7) from the dividend and append it to 0, then repeat: 7 / 1

Let's proceed to step 2:
1 goes into 7 7 times with a remainder of 0.
Record the quotient 7 as the next digit in the result. 
Result so far: 57.0
Deduct 7 from 7 and we're left with 0.
Include the next digit (0) from the dividend after 0, then repeat: 0 / 1

Step 3:
0 divided by 1 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 570.0
The remainder is 0 after subtracting 0 from 0.
Take the next digit (2) from the dividend and append it to 0, then repeat: 2 / 1

Let's proceed to step 4:
The number 1 fits into 2 2 times, leaving a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 5702.0
If we take 2 away from 2, we end up with 0.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 1

On to step 5:
1 divided by 1 is 1 with a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 57021.0
Subtracting 1 from 1 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.

Step 6:
1 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 57021.0
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.

Moving on to step 7:
1 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 57021.0
Deduct 0 from 0 and we're left 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.

In conclusion, the division gives 57021.0 with a balance of 0.0.