Let's divide 870573 by 30
We're looking to find how many times 30 goes into 870573.

Going ahead to step 1:
30 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 30

Moving on to step 2:
87 divided by 30 is 2 with a remainder of 27.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 60 from 87, we get 27.
Grab the next digit (0) from the dividend, add it to 27, then carry on: 270 / 30

Let's proceed to step 3:
When dividing 270 by 30, we get 9 with a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 29.0
The remainder is 0 after subtracting 270 from 270.
Take the next digit (5) from the dividend and append it to 0, then repeat: 5 / 30

Moving on to step 4:
5 divided by 30 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 290.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (7) of the dividend behind the 5 and repeat the process: 57 / 30

Moving on to step 5:
If we divide 57 by 30, we get 1 and a remainder of 27.
Write down 1 as next digit of the result. 
Result so far: 2901.0
The remainder is 27 after subtracting 30 from 57.
Grab the next digit (3) from the dividend, add it to 27, then carry on: 273 / 30

Going ahead to step 6:
If we divide 273 by 30, we get 9 and a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 29019.0
The remainder is 3 after subtracting 270 from 273.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 7:
30 goes into 30 1 times with a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 29019.1
Subtract 30 from 30 to 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.

Let's proceed to step 8:
If we divide 0 by 30, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 29019.1
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.

Going ahead to step 9:
30 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 29019.1
Subtract 0 from 0 to 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.

The final outcome is 29019.1, with a leftover of 0.0.