We look at the division of 810312 by 27 
We want to figure out the number of times 810312 can be divided by 27.

On to step 1:
If we divide 8 by 27, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 27

Step 2:
When dividing 81 by 27, we get 3 with a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we take 81 away from 81, we end up with 0.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 27

Moving on to step 3:
27 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 30.0
If we subtract 0 from 0, we get 0.
Take the next digit (3) from the dividend and append it to 0, then repeat: 3 / 27

Step 4:
When dividing 3 by 27, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 300.0
If we take 0 away from 3, we end up with 3.
Take the next digit (1) from the dividend and append it to 3, then repeat: 31 / 27

Let's proceed to step 5:
The number 27 fits into 31 1 times, leaving a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 3001.0
The remainder is 4 after subtracting 27 from 31.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 27

Step 6:
27 goes into 42 1 times with a remainder of 15.
Put 1 as the next digit of the answer. 
Result so far: 30011.0
If we take 27 away from 42, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 7:
The number 27 fits into 150 5 times, leaving a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 30011.5
If we subtract 135 from 150, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 8:
27 goes into 150 5 times with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 30011.55
The remainder is 15 after subtracting 135 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The final outcome is 30011.55, with a leftover of 0.015.