78400246 divided by 30 
We're looking to find how many times 30 goes into 78400246.

Let's proceed to step 1:
30 goes into 7 0 times with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 30

Going ahead to step 2:
When dividing 78 by 30, we get 2 with a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 60 from 78 leaves us with 18.
Include the next digit (4) from the dividend after 18, then repeat: 184 / 30

Step 3:
The number 30 fits into 184 6 times, leaving a remainder of 4.
The next digit of our result is 6. 
Result so far: 26.0
Subtract 180 from 184 to get 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 30

Step 4:
30 can be fit into 40 1 times, resulting in a remainder of 10.
The next digit of our result is 1. 
Result so far: 261.0
Subtracting 30 from 40 leaves us with 10.
Append the next digit (0) from the dividend to 10 and continue with: 100 / 30

Step 5:
30 can be fit into 100 3 times, resulting in a remainder of 10.
Put 3 as the next digit of the answer. 
Result so far: 2613.0
The remainder is 10 after subtracting 90 from 100.
Grab the next digit (2) from the dividend, add it to 10, then carry on: 102 / 30

On to step 6:
When dividing 102 by 30, we get 3 with a remainder of 12.
The number 3 becomes the next digit in our result. 
Result so far: 26133.0
If we subtract 90 from 102, we get 12.
Append the next digit (4) from the dividend to 12 and continue with: 124 / 30

On to step 7:
The number 30 fits into 124 4 times, leaving a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 261334.0
The remainder is 4 after subtracting 120 from 124.
Grab the next digit (6) from the dividend, add it to 4, then carry on: 46 / 30

Step 8:
If we divide 46 by 30, we get 1 and a remainder of 16.
Use 1 as the next digit of our solution. 
Result so far: 2613341.0
If we subtract 30 from 46, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 9:
30 goes into 160 5 times with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 2613341.5
Deduct 150 from 160 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.

On to step 10:
The number 30 fits into 100 3 times, leaving a remainder of 10.
The number 3 becomes the next digit in our result. 
Result so far: 2613341.53
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.

Going ahead to step 11:
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: 2613341.533
Deduct 90 from 100 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.

The final result is 2613341.533 with a remainder of 0.001.