499994 ÷ 21 
We want to divide 499994 by 21.

Moving on to step 1:
If we divide 4 by 21, we get 0 and a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 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.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 42 from 49 leaves us with 7.
Bring next digit (9) of the dividend behind the 7 and repeat the process: 79 / 21

On to step 3:
If we divide 79 by 21, we get 3 and a remainder of 16.
Write down 3 as next digit of the result. 
Result so far: 23.0
Deduct 63 from 79 and we're left with 16.
Take the next digit (9) from the dividend and append it to 16, then repeat: 169 / 21

Step 4:
If we divide 169 by 21, we get 8 and a remainder of 1.
Write down 8 as next digit of the result. 
Result so far: 238.0
Deduct 168 from 169 and we're left with 1.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 21

Going ahead to step 5:
When dividing 19 by 21, we get 0 with a remainder of 19.
Record the quotient 0 as the next digit in the result. 
Result so far: 2380.0
The remainder is 19 after subtracting 0 from 19.
Append the next digit (4) from the dividend to 19 and continue with: 194 / 21

Advancing to step 6:
The number 21 fits into 194 9 times, leaving a remainder of 5.
Record the quotient 9 as the next digit in the result. 
Result so far: 23809.0
If we take 189 away from 194, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 7:
The number 21 fits into 50 2 times, leaving a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 23809.2
Subtracting 42 from 50 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 8:
The number 21 fits into 80 3 times, leaving a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 23809.23
Subtract 63 from 80 to 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.

On to step 9:
The number 21 fits into 170 8 times, leaving a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 23809.238
The remainder is 2 after subtracting 168 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 10:
20 divided by 21 is 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 23809.238
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.

Step 11:
When dividing 200 by 21, we get 9 with a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 23809.23809
Deduct 189 from 200 and we're left 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.

Going ahead to step 12:
When dividing 110 by 21, we get 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 23809.238095
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.

On to step 13:
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: 23809.2380952
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.

Going ahead to step 14:
When dividing 80 by 21, we get 3 with a remainder of 17.
The next digit of our result is 3. 
Result so far: 23809.23809523
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.

The quotient of the division is 23809.23809523, and the remainder is 1.7e-08.