452540 ÷ 18 
We want to figure out the number of times 452540 can be divided by 18.

Moving on to step 1:
When dividing 4 by 18, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 18

Step 2:
If we divide 45 by 18, we get 2 and a remainder of 9.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 36 from 45 leaves us with 9.
Fetch the next digit (2) from the dividend, attach it to 9 and continue: 92 / 18

On to step 3:
92 divided by 18 is 5 with a remainder of 2.
Write down 5 as next digit of the result. 
Result so far: 25.0
Deduct 90 from 92 and we're left with 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 18

Moving on to step 4:
When dividing 25 by 18, we get 1 with a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 251.0
Subtract 18 from 25 to get 7.
Include the next digit (4) from the dividend after 7, then repeat: 74 / 18

Going ahead to step 5:
If we divide 74 by 18, we get 4 and a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 2514.0
Subtracting 72 from 74 leaves us with 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 18

Moving on to step 6:
18 goes into 20 1 times with a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 25141.0
The remainder is 2 after subtracting 18 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 7:
If we divide 20 by 18, we get 1 and a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 25141.1
The remainder is 2 after subtracting 18 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 8:
The number 18 fits into 20 1 times, leaving a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 25141.11
Subtract 18 from 20 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Our division results in 25141.11 with a remaining 0.002.