We're dividing 570223 by 21 
Let's see how many times 21 fits into 570223.

Going ahead to step 1:
21 can be fit into 5 0 times, resulting in a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 21

Step 2:
21 can be fit into 57 2 times, resulting in a remainder of 15.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 42 from 57 leaves us with 15.
Take the next digit (0) from the dividend and append it to 15, then repeat: 150 / 21

On to step 3:
If we divide 150 by 21, we get 7 and a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 27.0
If we take 147 away from 150, we end up with 3.
Include the next digit (2) from the dividend after 3, then repeat: 32 / 21

Let's proceed to step 4:
21 can be fit into 32 1 times, resulting in a remainder of 11.
Record the quotient 1 as the next digit in the result. 
Result so far: 271.0
Deduct 21 from 32 and we're left with 11.
Include the next digit (2) from the dividend after 11, then repeat: 112 / 21

Step 5:
112 divided by 21 is 5 with a remainder of 7.
Record the quotient 5 as the next digit in the result. 
Result so far: 2715.0
The remainder is 7 after subtracting 105 from 112.
Grab the next digit (3) from the dividend, add it to 7, then carry on: 73 / 21

Step 6:
If we divide 73 by 21, we get 3 and a remainder of 10.
Write down 3 as next digit of the result. 
Result so far: 27153.0
If we subtract 63 from 73, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 7:
21 can be fit into 100 4 times, resulting in a remainder of 16.
The next digit of our result is 4. 
Result so far: 27153.4
Subtracting 84 from 100 leaves us 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.

Advancing to step 8:
21 goes into 160 7 times with a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 27153.47
Subtracting 147 from 160 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 9:
The number 21 fits into 130 6 times, leaving a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 27153.476
The remainder is 4 after subtracting 126 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 10:
21 can be fit into 40 1 times, resulting in a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 27153.4761
If we subtract 21 from 40, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 11:
If we divide 190 by 21, we get 9 and a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 27153.47619
If we subtract 189 from 190, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 12:
When dividing 10 by 21, we get 0 with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 27153.47619
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 13:
When dividing 100 by 21, we get 4 with a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 27153.4761904
Subtracting 84 from 100 leaves us 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 14:
When dividing 160 by 21, we get 7 with a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 27153.47619047
Deduct 147 from 160 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

The quotient of the division is 27153.47619047, and the remainder is 1.3e-08.