397826 divided by 78 
We want to figure out the number of times 397826 can be divided by 78.

On to step 1:
When dividing 3 by 78, we get 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 78

Let's proceed to step 2:
39 divided by 78 is 0 with a remainder of 39.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 39 and we're left with 39.
Include the next digit (7) from the dividend after 39, then repeat: 397 / 78

Advancing to step 3:
78 can be fit into 397 5 times, resulting in a remainder of 7.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we take 390 away from 397, we end up with 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 78

Going ahead to step 4:
The number 78 fits into 78 1 times, leaving a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 51.0
Subtracting 78 from 78 leaves us with 0.
Append the next digit (2) from the dividend to 0 and continue with: 2 / 78

Advancing to step 5:
78 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 510.0
Subtract 0 from 2 to get 2.
Append the next digit (6) from the dividend to 2 and continue with: 26 / 78

Moving on to step 6:
78 can be fit into 26 0 times, resulting in a remainder of 26.
Write down 0 as next digit of the result. 
Result so far: 5100.0
Deduct 0 from 26 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 7:
The number 78 fits into 260 3 times, leaving a remainder of 26.
The number 3 becomes the next digit in our result. 
Result so far: 5100.3
Subtract 234 from 260 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 8:
When dividing 260 by 78, we get 3 with a remainder of 26.
The next digit of our result is 3. 
Result so far: 5100.33
Subtracting 234 from 260 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

The final outcome is 5100.33, with a leftover of 0.026.