Let's divide 497570 by 21
We're looking to find how many times 21 goes into 497570.

Going ahead to step 1:
4 divided by 21 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (9) from the dividend, attach it to 4 and continue: 49 / 21

Advancing to step 2:
When dividing 49 by 21, we get 2 with a remainder of 7.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 42 away from 49, we end up with 7.
Append the next digit (7) from the dividend to 7 and continue with: 77 / 21

Moving on to step 3:
When dividing 77 by 21, we get 3 with a remainder of 14.
Put 3 as the next digit of the answer. 
Result so far: 23.0
Subtract 63 from 77 to get 14.
Fetch the next digit (5) from the dividend, attach it to 14 and continue: 145 / 21

Going ahead to step 4:
21 goes into 145 6 times with a remainder of 19.
Record the quotient 6 as the next digit in the result. 
Result so far: 236.0
The remainder is 19 after subtracting 126 from 145.
Fetch the next digit (7) from the dividend, attach it to 19 and continue: 197 / 21

Advancing to step 5:
When dividing 197 by 21, we get 9 with a remainder of 8.
The next digit of our result is 9. 
Result so far: 2369.0
Deduct 189 from 197 and we're left with 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 21

Moving on to step 6:
If we divide 80 by 21, we get 3 and a remainder of 17.
Use 3 as the next digit of our solution. 
Result so far: 23693.0
The remainder is 17 after subtracting 63 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 7:
170 divided by 21 is 8 with a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 23693.8
Subtract 168 from 170 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 8:
When dividing 20 by 21, we get 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 23693.8
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 9:
21 goes into 200 9 times with a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 23693.809
If we take 189 away from 200, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 10:
110 divided by 21 is 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 23693.8095
If we subtract 105 from 110, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 11:
When dividing 50 by 21, we get 2 with a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 23693.80952
Subtract 42 from 50 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 12:
When dividing 80 by 21, we get 3 with a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 23693.809523
If we take 63 away from 80, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 13:
170 divided by 21 is 8 with a remainder of 2.
The next digit of our result is 8. 
Result so far: 23693.8095238
Subtract 168 from 170 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 14:
If we divide 20 by 21, we get 0 and a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 23693.8095238
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

In conclusion, the division gives 23693.8095238 with a balance of 2e-08.