We're dividing 539455 by 30 
We want to figure out the number of times 539455 can be divided by 30.

On to step 1:
30 goes into 5 0 times with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (3) from the dividend, add it to 5, then carry on: 53 / 30

Advancing to step 2:
53 divided by 30 is 1 with a remainder of 23.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 30 from 53, we get 23.
Include the next digit (9) from the dividend after 23, then repeat: 239 / 30

Advancing to step 3:
30 goes into 239 7 times with a remainder of 29.
Put 7 as the next digit of the answer. 
Result so far: 17.0
If we subtract 210 from 239, we get 29.
Fetch the next digit (4) from the dividend, attach it to 29 and continue: 294 / 30

Let's proceed to step 4:
30 can be fit into 294 9 times, resulting in a remainder of 24.
Record the quotient 9 as the next digit in the result. 
Result so far: 179.0
If we subtract 270 from 294, we get 24.
Fetch the next digit (5) from the dividend, attach it to 24 and continue: 245 / 30

On to step 5:
30 goes into 245 8 times with a remainder of 5.
Put 8 as the next digit of the answer. 
Result so far: 1798.0
If we subtract 240 from 245, we get 5.
Bring next digit (5) of the dividend behind the 5 and repeat the process: 55 / 30

Let's proceed to step 6:
55 divided by 30 is 1 with a remainder of 25.
Put 1 as the next digit of the answer. 
Result so far: 17981.0
If we take 30 away from 55, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 7:
30 can be fit into 250 8 times, resulting in a remainder of 10.
Record the quotient 8 as the next digit in the result. 
Result so far: 17981.8
Deduct 240 from 250 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
30 can be fit into 100 3 times, resulting in a remainder of 10.
Put 3 as the next digit of the answer. 
Result so far: 17981.83
Subtracting 90 from 100 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 9:
30 can be fit into 100 3 times, resulting in a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 17981.833
Subtract 90 from 100 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

After the division, we end up with 17981.833 and a remainder of 0.001.