We're dividing 870612 by 30 
We want to divide 870612 by 30.

On to step 1:
When dividing 8 by 30, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 30

On to step 2:
If we divide 87 by 30, we get 2 and a remainder of 27.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 60 from 87 leaves us with 27.
Include the next digit (0) from the dividend after 27, then repeat: 270 / 30

Going ahead to step 3:
If we divide 270 by 30, we get 9 and a remainder of 0.
The next digit of our result is 9. 
Result so far: 29.0
If we take 270 away from 270, we end up with 0.
Grab the next digit (6) from the dividend, add it to 0, then carry on: 6 / 30

Step 4:
If we divide 6 by 30, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 290.0
The remainder is 6 after subtracting 0 from 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 30

Let's proceed to step 5:
When dividing 61 by 30, we get 2 with a remainder of 1.
Put 2 as the next digit of the answer. 
Result so far: 2902.0
Subtracting 60 from 61 leaves us with 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 30

Going ahead to step 6:
If we divide 12 by 30, we get 0 and a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 29020.0
Deduct 0 from 12 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 7:
The number 30 fits into 120 4 times, leaving a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 29020.4
Subtracting 120 from 120 leaves us 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.

Advancing to step 8:
If we divide 0 by 30, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 29020.4
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:
30 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 29020.4
Deduct 0 from 0 and we're left 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.

Our division results in 29020.4 with a remaining 0.0.