543439 ÷ 30 
Our goal is to divide 543439 by 30.

Moving on to step 1:
If we divide 5 by 30, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (4) from the dividend, add it to 5, then carry on: 54 / 30

Moving on to step 2:
If we divide 54 by 30, we get 1 and a remainder of 24.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 30 from 54 to get 24.
Grab the next digit (3) from the dividend, add it to 24, then carry on: 243 / 30

Going ahead to step 3:
The number 30 fits into 243 8 times, leaving a remainder of 3.
Put 8 as the next digit of the answer. 
Result so far: 18.0
If we take 240 away from 243, we end up with 3.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 30

Going ahead to step 4:
30 can be fit into 34 1 times, resulting in a remainder of 4.
Put 1 as the next digit of the answer. 
Result so far: 181.0
Deduct 30 from 34 and we're left with 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 30

Moving on to step 5:
The number 30 fits into 43 1 times, leaving a remainder of 13.
Record the quotient 1 as the next digit in the result. 
Result so far: 1811.0
Subtract 30 from 43 to get 13.
Grab the next digit (9) from the dividend, add it to 13, then carry on: 139 / 30

Step 6:
The number 30 fits into 139 4 times, leaving a remainder of 19.
The next digit of our result is 4. 
Result so far: 18114.0
Subtract 120 from 139 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 7:
30 goes into 190 6 times with a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 18114.6
Deduct 180 from 190 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.

Advancing to step 8:
30 goes into 100 3 times with a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 18114.63
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.

Let's proceed to step 9:
When dividing 100 by 30, we get 3 with a remainder of 10.
Write down 3 as next digit of the result. 
Result so far: 18114.633
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.

After the division, we end up with 18114.633 and a remainder of 0.001.