867931 ÷ 30 
We're looking to find how many times 30 goes into 867931.

On to step 1:
8 divided by 30 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 30

Advancing to step 2:
If we divide 86 by 30, we get 2 and a remainder of 26.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 60 from 86 and we're left with 26.
Grab the next digit (7) from the dividend, add it to 26, then carry on: 267 / 30

Going ahead to step 3:
When dividing 267 by 30, we get 8 with a remainder of 27.
Write down 8 as next digit of the result. 
Result so far: 28.0
If we take 240 away from 267, we end up with 27.
Include the next digit (9) from the dividend after 27, then repeat: 279 / 30

Moving on to step 4:
If we divide 279 by 30, we get 9 and a remainder of 9.
Write down 9 as next digit of the result. 
Result so far: 289.0
Subtract 270 from 279 to get 9.
Grab the next digit (3) from the dividend, add it to 9, then carry on: 93 / 30

Step 5:
When dividing 93 by 30, we get 3 with a remainder of 3.
The next digit of our result is 3. 
Result so far: 2893.0
Deduct 90 from 93 and we're left with 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 30

Moving on to step 6:
When dividing 31 by 30, we get 1 with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 28931.0
If we subtract 30 from 31, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
When dividing 10 by 30, we get 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 28931.0
Deduct 0 from 10 and we're left 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 8:
The number 30 fits into 100 3 times, leaving a remainder of 10.
The next digit of our result is 3. 
Result so far: 28931.03
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.

Step 9:
When dividing 100 by 30, we get 3 with a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 28931.033
Subtract 90 from 100 to 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.

The final outcome is 28931.033, with a leftover of 0.001.