We divide 505753 by 21
Let's see how many times 21 fits into 505753.

Step 1:
The number 21 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Take the next digit (0) from the dividend and append it to 5, then repeat: 50 / 21

Advancing to step 2:
If we divide 50 by 21, we get 2 and a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 42 from 50 leaves us with 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 21

Let's proceed to step 3:
If we divide 85 by 21, we get 4 and a remainder of 1.
Put 4 as the next digit of the answer. 
Result so far: 24.0
The remainder is 1 after subtracting 84 from 85.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 21

Advancing to step 4:
When dividing 17 by 21, we get 0 with a remainder of 17.
Use 0 as the next digit of our solution. 
Result so far: 240.0
Subtract 0 from 17 to get 17.
Fetch the next digit (5) from the dividend, attach it to 17 and continue: 175 / 21

Advancing to step 5:
If we divide 175 by 21, we get 8 and a remainder of 7.
Write down 8 as next digit of the result. 
Result so far: 2408.0
The remainder is 7 after subtracting 168 from 175.
Bring next digit (3) of the dividend behind the 7 and repeat the process: 73 / 21

Let's proceed to step 6:
73 divided by 21 is 3 with a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 24083.0
The remainder is 10 after subtracting 63 from 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 7:
21 goes into 100 4 times with a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 24083.4
If we take 84 away from 100, we end up 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 8:
The number 21 fits into 160 7 times, leaving a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 24083.47
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:
21 goes into 130 6 times with a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 24083.476
Deduct 126 from 130 and we're left 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.

Going ahead to step 10:
21 can be fit into 40 1 times, resulting in a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 24083.4761
If we take 21 away from 40, we end up 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.

Let's proceed to step 11:
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: 24083.47619
Subtract 189 from 190 to 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.

Moving on to step 12:
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: 24083.47619
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.

Going ahead to step 13:
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: 24083.4761904
Deduct 84 from 100 and we're left 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.

Let's proceed to step 14:
21 goes into 160 7 times with a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 24083.47619047
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.

The final outcome is 24083.47619047, with a leftover of 1.3e-08.