We're dividing 491705 by 21 
We're looking to find how many times 21 goes into 491705.

Going ahead to step 1:
4 divided by 21 is 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Include the next digit (9) from the dividend after 4, then repeat: 49 / 21

Let's proceed to step 2:
21 can be fit into 49 2 times, resulting in a remainder of 7.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 7 after subtracting 42 from 49.
Grab the next digit (1) from the dividend, add it to 7, then carry on: 71 / 21

Advancing to step 3:
The number 21 fits into 71 3 times, leaving a remainder of 8.
Write down 3 as next digit of the result. 
Result so far: 23.0
If we subtract 63 from 71, we get 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 21

Let's proceed to step 4:
If we divide 87 by 21, we get 4 and a remainder of 3.
The next digit of our result is 4. 
Result so far: 234.0
The remainder is 3 after subtracting 84 from 87.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 21

Going ahead to step 5:
21 can be fit into 30 1 times, resulting in a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 2341.0
Subtracting 21 from 30 leaves us with 9.
Bring next digit (5) of the dividend behind the 9 and repeat the process: 95 / 21

On to step 6:
21 can be fit into 95 4 times, resulting in a remainder of 11.
Record the quotient 4 as the next digit in the result. 
Result so far: 23414.0
If we subtract 84 from 95, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 7:
21 can be fit into 110 5 times, resulting in a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 23414.5
The remainder is 5 after subtracting 105 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 8:
21 can be fit into 50 2 times, resulting in a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 23414.52
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.

Let's proceed to step 9:
When dividing 80 by 21, we get 3 with a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 23414.523
If we subtract 63 from 80, we get 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 10:
If we divide 170 by 21, we get 8 and a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 23414.5238
If we take 168 away from 170, we end up with 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 11:
When dividing 20 by 21, we get 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 23414.5238
Deduct 0 from 20 and we're left 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.

Let's proceed to step 12:
If we divide 200 by 21, we get 9 and a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 23414.523809
The remainder is 11 after subtracting 189 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 13:
21 goes into 110 5 times with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 23414.5238095
The remainder is 5 after subtracting 105 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 14:
If we divide 50 by 21, we get 2 and a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 23414.52380952
The remainder is 8 after subtracting 42 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

After the division, we end up with 23414.52380952 and a remainder of 8e-09.