We divide 512821 by 18
We want to divide 512821 by 18.

Step 1:
18 can be fit into 5 0 times, resulting in a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 18

Let's proceed to step 2:
When dividing 51 by 18, we get 2 with a remainder of 15.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 15 after subtracting 36 from 51.
Fetch the next digit (2) from the dividend, attach it to 15 and continue: 152 / 18

Moving on to step 3:
When dividing 152 by 18, we get 8 with a remainder of 8.
The next digit of our result is 8. 
Result so far: 28.0
The remainder is 8 after subtracting 144 from 152.
Include the next digit (8) from the dividend after 8, then repeat: 88 / 18

Let's proceed to step 4:
The number 18 fits into 88 4 times, leaving a remainder of 16.
The number 4 becomes the next digit in our result. 
Result so far: 284.0
Deduct 72 from 88 and we're left with 16.
Bring next digit (2) of the dividend behind the 16 and repeat the process: 162 / 18

Moving on to step 5:
18 can be fit into 162 9 times, resulting in a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 2849.0
If we subtract 162 from 162, we get 0.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 18

Going ahead to step 6:
If we divide 1 by 18, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 28490.0
If we take 0 away from 1, we end up 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.

On to step 7:
If we divide 10 by 18, we get 0 and a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 28490.0
Deduct 0 from 10 and we're left 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 8:
The number 18 fits into 100 5 times, leaving a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 28490.05
If we take 90 away from 100, 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.

Going ahead to step 9:
The number 18 fits into 100 5 times, leaving a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 28490.055
If we subtract 90 from 100, 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.

The final outcome is 28490.055, with a leftover of 0.001.