We look at the division of 549389 by 18 
Our goal is to divide 549389 by 18.

On to step 1:
If we divide 5 by 18, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 18

Let's proceed to step 2:
18 goes into 54 3 times with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 54 from 54 leaves us with 0.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 18

Going ahead to step 3:
The number 18 fits into 9 0 times, leaving a remainder of 9.
The next digit of our result is 0. 
Result so far: 30.0
Subtracting 0 from 9 leaves us with 9.
Fetch the next digit (3) from the dividend, attach it to 9 and continue: 93 / 18

Moving on to step 4:
18 goes into 93 5 times with a remainder of 3.
The number 5 becomes the next digit in our result. 
Result so far: 305.0
Subtract 90 from 93 to get 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 18

Going ahead to step 5:
The number 18 fits into 38 2 times, leaving a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 3052.0
Subtract 36 from 38 to get 2.
Fetch the next digit (9) from the dividend, attach it to 2 and continue: 29 / 18

Moving on to step 6:
18 can be fit into 29 1 times, resulting in a remainder of 11.
The next digit of our result is 1. 
Result so far: 30521.0
If we take 18 away from 29, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 7:
110 divided by 18 is 6 with a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 30521.6
If we take 108 away from 110, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 8:
The number 18 fits into 20 1 times, leaving a remainder of 2.
The next digit of our result is 1. 
Result so far: 30521.61
Subtracting 18 from 20 leaves us with 2.
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 9:
18 goes into 20 1 times with a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 30521.611
Deduct 18 from 20 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

After the division, we end up with 30521.611 and a remainder of 0.0002.