78417386 divided by 391 
We're looking to find how many times 391 goes into 78417386.

Let's proceed to step 1:
391 can be fit into 7 0 times, resulting in a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 391

Going ahead to step 2:
391 can be fit into 78 0 times, resulting in a remainder of 78.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 78, we end up with 78.
Take the next digit (4) from the dividend and append it to 78, then repeat: 784 / 391

Advancing to step 3:
When dividing 784 by 391, we get 2 with a remainder of 2.
The next digit of our result is 2. 
Result so far: 2.0
If we take 782 away from 784, we end up with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 391

Moving on to step 4:
The number 391 fits into 21 0 times, leaving a remainder of 21.
The next digit of our result is 0. 
Result so far: 20.0
Subtracting 0 from 21 leaves us with 21.
Take the next digit (7) from the dividend and append it to 21, then repeat: 217 / 391

Let's proceed to step 5:
391 can be fit into 217 0 times, resulting in a remainder of 217.
Write down 0 as next digit of the result. 
Result so far: 200.0
Subtract 0 from 217 to get 217.
Take the next digit (3) from the dividend and append it to 217, then repeat: 2173 / 391

Going ahead to step 6:
If we divide 2173 by 391, we get 5 and a remainder of 218.
Write down 5 as next digit of the result. 
Result so far: 2005.0
The remainder is 218 after subtracting 1955 from 2173.
Append the next digit (8) from the dividend to 218 and continue with: 2188 / 391

Step 7:
When dividing 2188 by 391, we get 5 with a remainder of 233.
The number 5 becomes the next digit in our result. 
Result so far: 20055.0
Subtract 1955 from 2188 to get 233.
Take the next digit (6) from the dividend and append it to 233, then repeat: 2336 / 391

Moving on to step 8:
The number 391 fits into 2336 5 times, leaving a remainder of 381.
Put 5 as the next digit of the answer. 
Result so far: 200555.0
The remainder is 381 after subtracting 1955 from 2336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3810, and continue the process.

Moving on to step 9:
When dividing 3810 by 391, we get 9 with a remainder of 291.
The number 9 becomes the next digit in our result. 
Result so far: 200555.9
Subtract 3519 from 3810 to get 291.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2910, and continue the process.

Let's proceed to step 10:
2910 divided by 391 is 7 with a remainder of 173.
Write down 7 as next digit of the result. 
Result so far: 200555.97
Subtract 2737 from 2910 to get 173.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1730, and continue the process.

On to step 11:
When dividing 1730 by 391, we get 4 with a remainder of 166.
Put 4 as the next digit of the answer. 
Result so far: 200555.974
The remainder is 166 after subtracting 1564 from 1730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Let's proceed to step 12:
391 can be fit into 1660 4 times, resulting in a remainder of 96.
The next digit of our result is 4. 
Result so far: 200555.9744
Subtracting 1564 from 1660 leaves us with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

The final result is 200555.9744 with a remainder of 0.00096.