873172 ÷ 30 
Let's see how many times 30 fits into 873172.

On to step 1:
The number 30 fits into 8 0 times, leaving a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 30

Step 2:
30 goes into 87 2 times with a remainder of 27.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 60 from 87 to get 27.
Fetch the next digit (3) from the dividend, attach it to 27 and continue: 273 / 30

Moving on to step 3:
If we divide 273 by 30, we get 9 and a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 29.0
Subtracting 270 from 273 leaves us with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 30

Moving on to step 4:
31 divided by 30 is 1 with a remainder of 1.
The next digit of our result is 1. 
Result so far: 291.0
Deduct 30 from 31 and we're left with 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 30

Advancing to step 5:
The number 30 fits into 17 0 times, leaving a remainder of 17.
Put 0 as the next digit of the answer. 
Result so far: 2910.0
Subtract 0 from 17 to get 17.
Include the next digit (2) from the dividend after 17, then repeat: 172 / 30

Moving on to step 6:
30 can be fit into 172 5 times, resulting in a remainder of 22.
The next digit of our result is 5. 
Result so far: 29105.0
If we subtract 150 from 172, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 7:
If we divide 220 by 30, we get 7 and a remainder of 10.
Put 7 as the next digit of the answer. 
Result so far: 29105.7
The remainder is 10 after subtracting 210 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
100 divided by 30 is 3 with a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 29105.73
If we take 90 away from 100, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 9:
The number 30 fits into 100 3 times, leaving a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 29105.733
Subtracting 90 from 100 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Our division results in 29105.733 with a remaining 0.001.