840410 ÷ 30 
We want to divide 840410 by 30.

Let's proceed to step 1:
The number 30 fits into 8 0 times, leaving 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.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 30

On to step 2:
The number 30 fits into 84 2 times, leaving a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 60 from 84 and we're left with 24.
Grab the next digit (0) from the dividend, add it to 24, then carry on: 240 / 30

On to step 3:
If we divide 240 by 30, we get 8 and a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 28.0
If we take 240 away from 240, we end up with 0.
Bring next digit (4) of the dividend behind the 0 and repeat the process: 4 / 30

Let's proceed to step 4:
30 goes into 4 0 times with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 280.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (1) from the dividend and append it to 4, then repeat: 41 / 30

On to step 5:
41 divided by 30 is 1 with a remainder of 11.
Record the quotient 1 as the next digit in the result. 
Result so far: 2801.0
Deduct 30 from 41 and we're left with 11.
Include the next digit (0) from the dividend after 11, then repeat: 110 / 30

Let's proceed to step 6:
110 divided by 30 is 3 with a remainder of 20.
Use 3 as the next digit of our solution. 
Result so far: 28013.0
Subtract 90 from 110 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 7:
200 divided by 30 is 6 with a remainder of 20.
The next digit of our result is 6. 
Result so far: 28013.6
Deduct 180 from 200 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 8:
30 can be fit into 200 6 times, resulting in a remainder of 20.
Put 6 as the next digit of the answer. 
Result so far: 28013.66
If we take 180 away from 200, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 28013.66 with a remainder of 0.02.