Let's divide 831874 by 30
We're looking to find how many times 30 goes into 831874.

Step 1:
30 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (3) of the dividend behind the 8 and repeat the process: 83 / 30

On to step 2:
30 can be fit into 83 2 times, resulting in a remainder of 23.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 23 after subtracting 60 from 83.
Fetch the next digit (1) from the dividend, attach it to 23 and continue: 231 / 30

Advancing to step 3:
231 divided by 30 is 7 with a remainder of 21.
Put 7 as the next digit of the answer. 
Result so far: 27.0
Deduct 210 from 231 and we're left with 21.
Bring next digit (8) of the dividend behind the 21 and repeat the process: 218 / 30

Let's proceed to step 4:
If we divide 218 by 30, we get 7 and a remainder of 8.
The next digit of our result is 7. 
Result so far: 277.0
If we take 210 away from 218, we end up with 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 30

Going ahead to step 5:
30 goes into 87 2 times with a remainder of 27.
The next digit of our result is 2. 
Result so far: 2772.0
If we subtract 60 from 87, we get 27.
Include the next digit (4) from the dividend after 27, then repeat: 274 / 30

Advancing to step 6:
If we divide 274 by 30, we get 9 and a remainder of 4.
Use 9 as the next digit of our solution. 
Result so far: 27729.0
Deduct 270 from 274 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 7:
40 divided by 30 is 1 with a remainder of 10.
The number 1 becomes the next digit in our result. 
Result so far: 27729.1
If we subtract 30 from 40, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
100 divided by 30 is 3 with a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 27729.13
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 9:
30 goes into 100 3 times with a remainder of 10.
Put 3 as the next digit of the answer. 
Result so far: 27729.133
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.

The final outcome is 27729.133, with a leftover of 0.001.