451239 ÷ 27 
Our goal is to divide 451239 by 27.

Going ahead to step 1:
When dividing 4 by 27, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 27

Going ahead to step 2:
When dividing 45 by 27, we get 1 with a remainder of 18.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 27 from 45 and we're left with 18.
Grab the next digit (1) from the dividend, add it to 18, then carry on: 181 / 27

Let's proceed to step 3:
27 goes into 181 6 times with a remainder of 19.
Put 6 as the next digit of the answer. 
Result so far: 16.0
Deduct 162 from 181 and we're left with 19.
Include the next digit (2) from the dividend after 19, then repeat: 192 / 27

Step 4:
If we divide 192 by 27, we get 7 and a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 167.0
Subtract 189 from 192 to get 3.
Take the next digit (3) from the dividend and append it to 3, then repeat: 33 / 27

Moving on to step 5:
33 divided by 27 is 1 with a remainder of 6.
The next digit of our result is 1. 
Result so far: 1671.0
Subtract 27 from 33 to get 6.
Bring next digit (9) of the dividend behind the 6 and repeat the process: 69 / 27

On to step 6:
The number 27 fits into 69 2 times, leaving a remainder of 15.
The number 2 becomes the next digit in our result. 
Result so far: 16712.0
Subtract 54 from 69 to 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.

Advancing to step 7:
If we divide 150 by 27, we get 5 and a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 16712.5
Subtract 135 from 150 to 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.

Moving on to step 8:
150 divided by 27 is 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 16712.55
Deduct 135 from 150 and we're left 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.

The quotient of the division is 16712.55, and the remainder is 0.015.