We're dividing 823954 by 21 
We want to divide 823954 by 21.

Let's proceed to step 1:
If we divide 8 by 21, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Fetch the next digit (2) from the dividend, attach it to 8 and continue: 82 / 21

Let's proceed to step 2:
When dividing 82 by 21, we get 3 with a remainder of 19.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we subtract 63 from 82, we get 19.
Append the next digit (3) from the dividend to 19 and continue with: 193 / 21

Moving on to step 3:
21 goes into 193 9 times with a remainder of 4.
Put 9 as the next digit of the answer. 
Result so far: 39.0
Subtract 189 from 193 to get 4.
Fetch the next digit (9) from the dividend, attach it to 4 and continue: 49 / 21

Step 4:
49 divided by 21 is 2 with a remainder of 7.
Use 2 as the next digit of our solution. 
Result so far: 392.0
If we subtract 42 from 49, we get 7.
Take the next digit (5) from the dividend and append it to 7, then repeat: 75 / 21

Going ahead to step 5:
If we divide 75 by 21, we get 3 and a remainder of 12.
Put 3 as the next digit of the answer. 
Result so far: 3923.0
Subtract 63 from 75 to get 12.
Include the next digit (4) from the dividend after 12, then repeat: 124 / 21

On to step 6:
21 goes into 124 5 times with a remainder of 19.
Write down 5 as next digit of the result. 
Result so far: 39235.0
Subtract 105 from 124 to get 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 7:
190 divided by 21 is 9 with a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 39235.9
The remainder is 1 after subtracting 189 from 190.
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 8:
The number 21 fits into 10 0 times, leaving a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 39235.9
Subtracting 0 from 10 leaves us with 10.
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 9:
The number 21 fits into 100 4 times, leaving a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 39235.904
If we subtract 84 from 100, we get 16.
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 10:
If we divide 160 by 21, we get 7 and a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 39235.9047
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.

On to step 11:
21 goes into 130 6 times with a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 39235.90476
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.

On to step 12:
When dividing 40 by 21, we get 1 with a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 39235.904761
If we subtract 21 from 40, we get 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 13:
The number 21 fits into 190 9 times, leaving a remainder of 1.
The next digit of our result is 9. 
Result so far: 39235.9047619
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.

Let's proceed to step 14:
When dividing 10 by 21, we get 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 39235.9047619
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final outcome is 39235.9047619, with a leftover of 1e-08.