502510 divided by 78 
Let's see how many times 78 fits into 502510.

Step 1:
The number 78 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Bring next digit (0) of the dividend behind the 5 and repeat the process: 50 / 78

On to 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
The remainder is 50 after subtracting 0 from 50.
Bring next digit (2) of the dividend behind the 50 and repeat the process: 502 / 78

Moving on to step 3:
502 divided by 78 is 6 with a remainder of 34.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtract 468 from 502 to get 34.
Bring next digit (5) of the dividend behind the 34 and repeat the process: 345 / 78

Going ahead to step 4:
If we divide 345 by 78, we get 4 and a remainder of 33.
Put 4 as the next digit of the answer. 
Result so far: 64.0
If we subtract 312 from 345, we get 33.
Take the next digit (1) from the dividend and append it to 33, then repeat: 331 / 78

Advancing to step 5:
78 goes into 331 4 times with a remainder of 19.
Use 4 as the next digit of our solution. 
Result so far: 644.0
Deduct 312 from 331 and we're left with 19.
Include the next digit (0) from the dividend after 19, then repeat: 190 / 78

Let's proceed to step 6:
78 can be fit into 190 2 times, resulting in a remainder of 34.
Record the quotient 2 as the next digit in the result. 
Result so far: 6442.0
If we take 156 away from 190, we end up 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.

Step 7:
340 divided by 78 is 4 with a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 6442.4
If we take 312 away from 340, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 8:
The number 78 fits into 280 3 times, leaving a remainder of 46.
Write down 3 as next digit of the result. 
Result so far: 6442.43
Deduct 234 from 280 and we're left 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.

Going ahead to step 9:
When dividing 460 by 78, we get 5 with a remainder of 70.
The next digit of our result is 5. 
Result so far: 6442.435
Subtracting 390 from 460 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 10:
The number 78 fits into 700 8 times, leaving a remainder of 76.
Write down 8 as next digit of the result. 
Result so far: 6442.4358
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:
The number 78 fits into 760 9 times, leaving a remainder of 58.
The next digit of our result is 9. 
Result so far: 6442.43589
Deduct 702 from 760 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 12:
When dividing 580 by 78, we get 7 with a remainder of 34.
The number 7 becomes the next digit in our result. 
Result so far: 6442.435897
The remainder is 34 after subtracting 546 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 13:
340 divided by 78 is 4 with a remainder of 28.
The number 4 becomes the next digit in our result. 
Result so far: 6442.4358974
If we take 312 away from 340, we end up with 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 14:
78 goes into 280 3 times with a remainder of 46.
The next digit of our result is 3. 
Result so far: 6442.43589743
If we subtract 234 from 280, we 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.

The final result is 6442.43589743 with a remainder of 4.6e-08.