508439 divided by 78 
Let's see how many times 78 fits into 508439.

On to step 1:
5 divided by 78 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Grab the next digit (0) from the dividend, add it to 5, then carry on: 50 / 78

Step 2:
If we divide 50 by 78, we get 0 and a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 50 and we're left with 50.
Append the next digit (8) from the dividend to 50 and continue with: 508 / 78

Advancing to step 3:
78 goes into 508 6 times with a remainder of 40.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we subtract 468 from 508, we get 40.
Take the next digit (4) from the dividend and append it to 40, then repeat: 404 / 78

On to step 4:
78 goes into 404 5 times with a remainder of 14.
Record the quotient 5 as the next digit in the result. 
Result so far: 65.0
If we subtract 390 from 404, we get 14.
Fetch the next digit (3) from the dividend, attach it to 14 and continue: 143 / 78

On to step 5:
The number 78 fits into 143 1 times, leaving a remainder of 65.
Record the quotient 1 as the next digit in the result. 
Result so far: 651.0
Subtract 78 from 143 to get 65.
Include the next digit (9) from the dividend after 65, then repeat: 659 / 78

Going ahead to step 6:
659 divided by 78 is 8 with a remainder of 35.
Use 8 as the next digit of our solution. 
Result so far: 6518.0
Subtract 624 from 659 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 7:
78 goes into 350 4 times with a remainder of 38.
The next digit of our result is 4. 
Result so far: 6518.4
If we take 312 away from 350, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 8:
380 divided by 78 is 4 with a remainder of 68.
Write down 4 as next digit of the result. 
Result so far: 6518.44
Deduct 312 from 380 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Our division results in 6518.44 with a remaining 0.068.