We're dividing 263451 by 18 
Our goal is to divide 263451 by 18.

On to step 1:
18 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Bring next digit (6) of the dividend behind the 2 and repeat the process: 26 / 18

Step 2:
The number 18 fits into 26 1 times, leaving a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 18 from 26, we get 8.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 18

Going ahead to step 3:
18 goes into 83 4 times with a remainder of 11.
The next digit of our result is 4. 
Result so far: 14.0
If we take 72 away from 83, we end up with 11.
Take the next digit (4) from the dividend and append it to 11, then repeat: 114 / 18

On to step 4:
When dividing 114 by 18, we get 6 with a remainder of 6.
Put 6 as the next digit of the answer. 
Result so far: 146.0
If we subtract 108 from 114, we get 6.
Grab the next digit (5) from the dividend, add it to 6, then carry on: 65 / 18

Step 5:
18 goes into 65 3 times with a remainder of 11.
Put 3 as the next digit of the answer. 
Result so far: 1463.0
Subtract 54 from 65 to get 11.
Fetch the next digit (1) from the dividend, attach it to 11 and continue: 111 / 18

Going ahead to step 6:
111 divided by 18 is 6 with a remainder of 3.
Use 6 as the next digit of our solution. 
Result so far: 14636.0
The remainder is 3 after subtracting 108 from 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
18 can be fit into 30 1 times, resulting in a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 14636.1
The remainder is 12 after subtracting 18 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 8:
The number 18 fits into 120 6 times, leaving a remainder of 12.
The next digit of our result is 6. 
Result so far: 14636.16
Subtracting 108 from 120 leaves us 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.

Let's proceed to step 9:
18 can be fit into 120 6 times, resulting in a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 14636.166
Subtracting 108 from 120 leaves us 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.

The quotient of the division is 14636.166, and the remainder is 0.0012.