We're dividing 355809 by 30 
We want to divide 355809 by 30.

Moving on to step 1:
30 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 30

Step 2:
30 can be fit into 35 1 times, resulting in a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 30 from 35 and we're left with 5.
Bring next digit (5) of the dividend behind the 5 and repeat the process: 55 / 30

Let's proceed to step 3:
When dividing 55 by 30, we get 1 with a remainder of 25.
Write down 1 as next digit of the result. 
Result so far: 11.0
Subtracting 30 from 55 leaves us with 25.
Bring next digit (8) of the dividend behind the 25 and repeat the process: 258 / 30

Going ahead to step 4:
258 divided by 30 is 8 with a remainder of 18.
The number 8 becomes the next digit in our result. 
Result so far: 118.0
Subtracting 240 from 258 leaves us with 18.
Include the next digit (0) from the dividend after 18, then repeat: 180 / 30

Advancing to step 5:
The number 30 fits into 180 6 times, leaving a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 1186.0
The remainder is 0 after subtracting 180 from 180.
Bring next digit (9) of the dividend behind the 0 and repeat the process: 9 / 30

Advancing to step 6:
The number 30 fits into 9 0 times, leaving a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 11860.0
If we subtract 0 from 9, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 7:
30 can be fit into 90 3 times, resulting in a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 11860.3
The remainder is 0 after subtracting 90 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
30 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 11860.3
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
0 divided by 30 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 11860.3
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 11860.3 with a balance of 0.0.