We're dividing 821358 by 20 
We want to divide 821358 by 20.

Moving on to step 1:
8 divided by 20 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (2) of the dividend behind the 8 and repeat the process: 82 / 20

Going ahead to step 2:
20 goes into 82 4 times with a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we subtract 80 from 82, we get 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 20

Going ahead to step 3:
20 goes into 21 1 times with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 41.0
The remainder is 1 after subtracting 20 from 21.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 20

On to step 4:
13 divided by 20 is 0 with a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 410.0
Deduct 0 from 13 and we're left with 13.
Include the next digit (5) from the dividend after 13, then repeat: 135 / 20

Going ahead to step 5:
If we divide 135 by 20, we get 6 and a remainder of 15.
The next digit of our result is 6. 
Result so far: 4106.0
If we take 120 away from 135, we end up with 15.
Fetch the next digit (8) from the dividend, attach it to 15 and continue: 158 / 20

Going ahead to step 6:
If we divide 158 by 20, we get 7 and a remainder of 18.
Record the quotient 7 as the next digit in the result. 
Result so far: 41067.0
Deduct 140 from 158 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 7:
If we divide 180 by 20, we get 9 and a remainder of 0.
Record the quotient 9 as the next digit in the result. 
Result so far: 41067.9
If we subtract 180 from 180, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
20 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 41067.9
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 41067.9
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 41067.9 with a remainder of 0.0.