668218 ÷ 78 
We want to figure out the number of times 668218 can be divided by 78.

Moving on to step 1:
The number 78 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 78

Moving on to step 2:
78 can be fit into 66 0 times, resulting in a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Fetch the next digit (8) from the dividend, attach it to 66 and continue: 668 / 78

Let's proceed to step 3:
When dividing 668 by 78, we get 8 with a remainder of 44.
The next digit of our result is 8. 
Result so far: 8.0
If we take 624 away from 668, we end up with 44.
Bring next digit (2) of the dividend behind the 44 and repeat the process: 442 / 78

On to step 4:
78 goes into 442 5 times with a remainder of 52.
Write down 5 as next digit of the result. 
Result so far: 85.0
Subtracting 390 from 442 leaves us with 52.
Fetch the next digit (1) from the dividend, attach it to 52 and continue: 521 / 78

Moving on to step 5:
When dividing 521 by 78, we get 6 with a remainder of 53.
The number 6 becomes the next digit in our result. 
Result so far: 856.0
Subtracting 468 from 521 leaves us with 53.
Include the next digit (8) from the dividend after 53, then repeat: 538 / 78

Advancing to step 6:
The number 78 fits into 538 6 times, leaving a remainder of 70.
Use 6 as the next digit of our solution. 
Result so far: 8566.0
Subtracting 468 from 538 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.

On to step 7:
When dividing 700 by 78, we get 8 with a remainder of 76.
Use 8 as the next digit of our solution. 
Result so far: 8566.8
If we subtract 624 from 700, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 8:
When dividing 760 by 78, we get 9 with a remainder of 58.
The number 9 becomes the next digit in our result. 
Result so far: 8566.89
Subtracting 702 from 760 leaves us 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.

Step 9:
The number 78 fits into 580 7 times, leaving a remainder of 34.
The next digit of our result is 7. 
Result so far: 8566.897
If we subtract 546 from 580, we get 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 10:
If we divide 340 by 78, we get 4 and a remainder of 28.
The number 4 becomes the next digit in our result. 
Result so far: 8566.8974
Subtracting 312 from 340 leaves us 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.

Going ahead to step 11:
If we divide 280 by 78, we get 3 and a remainder of 46.
The next digit of our result is 3. 
Result so far: 8566.89743
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.

Moving on to step 12:
78 goes into 460 5 times with a remainder of 70.
Write down 5 as next digit of the result. 
Result so far: 8566.897435
If we take 390 away from 460, we end up 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.

Let's proceed to step 13:
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: 8566.8974358
Deduct 624 from 700 and we're left 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.

On to step 14:
78 goes into 760 9 times with a remainder of 58.
Use 9 as the next digit of our solution. 
Result so far: 8566.89743589
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.

The final result is 8566.89743589 with a remainder of 5.8e-08.