566206 divided by 21 
Our goal is to divide 566206 by 21.

Let's proceed to step 1:
When dividing 5 by 21, we get 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Bring next digit (6) of the dividend behind the 5 and repeat the process: 56 / 21

Going ahead to step 2:
The number 21 fits into 56 2 times, leaving a remainder of 14.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 42 from 56, we get 14.
Bring next digit (6) of the dividend behind the 14 and repeat the process: 146 / 21

Advancing to step 3:
146 divided by 21 is 6 with a remainder of 20.
The next digit of our result is 6. 
Result so far: 26.0
If we subtract 126 from 146, we get 20.
Take the next digit (2) from the dividend and append it to 20, then repeat: 202 / 21

Advancing to step 4:
When dividing 202 by 21, we get 9 with a remainder of 13.
Use 9 as the next digit of our solution. 
Result so far: 269.0
Subtract 189 from 202 to get 13.
Append the next digit (0) from the dividend to 13 and continue with: 130 / 21

On to step 5:
The number 21 fits into 130 6 times, leaving a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 2696.0
Deduct 126 from 130 and we're left with 4.
Grab the next digit (6) from the dividend, add it to 4, then carry on: 46 / 21

Step 6:
21 goes into 46 2 times with a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 26962.0
Subtracting 42 from 46 leaves us with 4.
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 7:
40 divided by 21 is 1 with a remainder of 19.
The next digit of our result is 1. 
Result so far: 26962.1
Subtracting 21 from 40 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 8:
21 can be fit into 190 9 times, resulting in a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 26962.19
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.

Going ahead to step 9:
The number 21 fits into 10 0 times, leaving a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 26962.19
If we subtract 0 from 10, 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.

Let's proceed to step 10:
100 divided by 21 is 4 with a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 26962.1904
The remainder is 16 after subtracting 84 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 11:
If we divide 160 by 21, we get 7 and a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 26962.19047
If we take 147 away from 160, we end up 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 12:
If we divide 130 by 21, we get 6 and a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 26962.190476
If we subtract 126 from 130, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 13:
If we divide 40 by 21, we get 1 and a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 26962.1904761
The remainder is 19 after subtracting 21 from 40.
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 14:
The number 21 fits into 190 9 times, leaving a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 26962.19047619
Subtracting 189 from 190 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Our division results in 26962.19047619 with a remaining 1e-09.