863923 divided by 78 
Let's see how many times 78 fits into 863923.

Going ahead to step 1:
The number 78 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
Subtract 0 from 8 to get 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 78

Going ahead to step 2:
78 can be fit into 86 1 times, resulting in a remainder of 8.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 8 after subtracting 78 from 86.
Append the next digit (3) from the dividend to 8 and continue with: 83 / 78

On to step 3:
If we divide 83 by 78, we get 1 and a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 11.0
The remainder is 5 after subtracting 78 from 83.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 78

Step 4:
78 goes into 59 0 times with a remainder of 59.
The number 0 becomes the next digit in our result. 
Result so far: 110.0
Deduct 0 from 59 and we're left with 59.
Bring next digit (2) of the dividend behind the 59 and repeat the process: 592 / 78

Moving on to step 5:
The number 78 fits into 592 7 times, leaving a remainder of 46.
Use 7 as the next digit of our solution. 
Result so far: 1107.0
If we subtract 546 from 592, we get 46.
Include the next digit (3) from the dividend after 46, then repeat: 463 / 78

Let's proceed to step 6:
The number 78 fits into 463 5 times, leaving a remainder of 73.
Put 5 as the next digit of the answer. 
Result so far: 11075.0
Subtracting 390 from 463 leaves us with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Moving on to step 7:
730 divided by 78 is 9 with a remainder of 28.
Use 9 as the next digit of our solution. 
Result so far: 11075.9
Subtract 702 from 730 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 8:
When dividing 280 by 78, we get 3 with a remainder of 46.
Record the quotient 3 as the next digit in the result. 
Result so far: 11075.93
Subtract 234 from 280 to get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 9:
78 can be fit into 460 5 times, resulting in a remainder of 70.
The next digit of our result is 5. 
Result so far: 11075.935
If we subtract 390 from 460, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 10:
When dividing 700 by 78, we get 8 with a remainder of 76.
Write down 8 as next digit of the result. 
Result so far: 11075.9358
Subtracting 624 from 700 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Step 11:
760 divided by 78 is 9 with a remainder of 58.
The next digit of our result is 9. 
Result so far: 11075.93589
If we subtract 702 from 760, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 12:
78 can be fit into 580 7 times, resulting in a remainder of 34.
Record the quotient 7 as the next digit in the result. 
Result so far: 11075.935897
Subtracting 546 from 580 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 13:
If we divide 340 by 78, we get 4 and a remainder of 28.
The next digit of our result is 4. 
Result so far: 11075.9358974
Subtract 312 from 340 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 14:
The number 78 fits into 280 3 times, leaving a remainder of 46.
Put 3 as the next digit of the answer. 
Result so far: 11075.93589743
If we take 234 away from 280, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

After the division, we end up with 11075.93589743 and a remainder of 4.6e-08.