We look at the division of 490407 by 18 
We're looking to find how many times 18 goes into 490407.

On to step 1:
When dividing 4 by 18, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (9) from the dividend, add it to 4, then carry on: 49 / 18

Let's proceed to step 2:
When dividing 49 by 18, we get 2 with a remainder of 13.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 36 from 49 leaves us with 13.
Fetch the next digit (0) from the dividend, attach it to 13 and continue: 130 / 18

Going ahead to step 3:
130 divided by 18 is 7 with a remainder of 4.
The next digit of our result is 7. 
Result so far: 27.0
If we take 126 away from 130, we end up with 4.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 18

Let's proceed to step 4:
44 divided by 18 is 2 with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 272.0
The remainder is 8 after subtracting 36 from 44.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 18

Advancing to step 5:
If we divide 80 by 18, we get 4 and a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 2724.0
If we take 72 away from 80, we end up with 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 18

Going ahead to step 6:
The number 18 fits into 87 4 times, leaving a remainder of 15.
Put 4 as the next digit of the answer. 
Result so far: 27244.0
The remainder is 15 after subtracting 72 from 87.
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 7:
18 goes into 150 8 times with a remainder of 6.
The number 8 becomes the next digit in our result. 
Result so far: 27244.8
The remainder is 6 after subtracting 144 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 8:
18 can be fit into 60 3 times, resulting in a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 27244.83
Deduct 54 from 60 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 9:
18 goes into 60 3 times with a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 27244.833
If we take 54 away from 60, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final result is 27244.833 with a remainder of 0.0006.