We look at the division of 21810 by 36 
We're looking to find how many times 36 goes into 21810.

Going ahead to step 1:
36 can be fit into 2 0 times, resulting in a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 36

On to step 2:
36 goes into 21 0 times with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Include the next digit (8) from the dividend after 21, then repeat: 218 / 36

Going ahead to step 3:
36 goes into 218 6 times with a remainder of 2.
The next digit of our result is 6. 
Result so far: 6.0
If we take 216 away from 218, we end up with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 36

Let's proceed to step 4:
36 goes into 21 0 times with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 60.0
If we subtract 0 from 21, we get 21.
Fetch the next digit (0) from the dividend, attach it to 21 and continue: 210 / 36

Advancing to step 5:
36 goes into 210 5 times with a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 605.0
The remainder is 30 after subtracting 180 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 6:
36 can be fit into 300 8 times, resulting in a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 605.8
Deduct 288 from 300 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 7:
120 divided by 36 is 3 with a remainder of 12.
Record the quotient 3 as the next digit in the result. 
Result so far: 605.83
The remainder is 12 after subtracting 108 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 8:
The number 36 fits into 120 3 times, leaving a remainder of 12.
The next digit of our result is 3. 
Result so far: 605.833
Subtract 108 from 120 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Our division results in 605.833 with a remaining 0.0012.