543545 ÷ 30 
We want to figure out the number of times 543545 can be divided by 30.

Step 1:
30 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (4) from the dividend to 5 and continue with: 54 / 30

Moving on to step 2:
54 divided by 30 is 1 with a remainder of 24.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 24 after subtracting 30 from 54.
Append the next digit (3) from the dividend to 24 and continue with: 243 / 30

Advancing 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
Deduct 240 from 243 and we're left with 3.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 30

Let's proceed to step 4:
30 goes into 35 1 times with a remainder of 5.
The next digit of our result is 1. 
Result so far: 181.0
Subtracting 30 from 35 leaves us with 5.
Take the next digit (4) from the dividend and append it to 5, then repeat: 54 / 30

Advancing to step 5:
30 can be fit into 54 1 times, resulting in a remainder of 24.
Write down 1 as next digit of the result. 
Result so far: 1811.0
Deduct 30 from 54 and we're left with 24.
Take the next digit (5) from the dividend and append it to 24, then repeat: 245 / 30

Step 6:
If we divide 245 by 30, we get 8 and a remainder of 5.
Use 8 as the next digit of our solution. 
Result so far: 18118.0
Deduct 240 from 245 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 7:
50 divided by 30 is 1 with a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 18118.1
If we subtract 30 from 50, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 8:
When dividing 200 by 30, we get 6 with a remainder of 20.
The number 6 becomes the next digit in our result. 
Result so far: 18118.16
Subtracting 180 from 200 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 9:
The number 30 fits into 200 6 times, leaving a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 18118.166
If we subtract 180 from 200, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

After the division, we end up with 18118.166 and a remainder of 0.002.