855309 divided by 30 
Let's see how many times 30 fits into 855309.

Advancing to step 1:
When dividing 8 by 30, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 30

Step 2:
If we divide 85 by 30, we get 2 and a remainder of 25.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 60 from 85 to get 25.
Include the next digit (5) from the dividend after 25, then repeat: 255 / 30

Let's proceed to step 3:
The number 30 fits into 255 8 times, leaving a remainder of 15.
The next digit of our result is 8. 
Result so far: 28.0
Deduct 240 from 255 and we're left with 15.
Append the next digit (3) from the dividend to 15 and continue with: 153 / 30

Moving on to step 4:
30 goes into 153 5 times with a remainder of 3.
Put 5 as the next digit of the answer. 
Result so far: 285.0
Deduct 150 from 153 and we're left with 3.
Fetch the next digit (0) from the dividend, attach it to 3 and continue: 30 / 30

Advancing to step 5:
30 can be fit into 30 1 times, resulting in a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 2851.0
If we take 30 away from 30, we end up with 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 30

Moving on to step 6:
If we divide 9 by 30, we get 0 and a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 28510.0
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.

Let's proceed to step 7:
90 divided by 30 is 3 with a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 28510.3
If we subtract 90 from 90, 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.

Advancing to step 8:
The number 30 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 28510.3
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.

Advancing to step 9:
30 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 28510.3
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 28510.3 and a remainder of 0.0.