We're dividing 685659 by 78 
We want to figure out the number of times 685659 can be divided by 78.

Step 1:
When dividing 6 by 78, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (8) from the dividend to 6 and continue with: 68 / 78

Let's proceed to step 2:
The number 78 fits into 68 0 times, leaving a remainder of 68.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 68 after subtracting 0 from 68.
Take the next digit (5) from the dividend and append it to 68, then repeat: 685 / 78

Moving on to step 3:
78 goes into 685 8 times with a remainder of 61.
The next digit of our result is 8. 
Result so far: 8.0
If we subtract 624 from 685, we get 61.
Grab the next digit (6) from the dividend, add it to 61, then carry on: 616 / 78

On to step 4:
When dividing 616 by 78, we get 7 with a remainder of 70.
Put 7 as the next digit of the answer. 
Result so far: 87.0
If we take 546 away from 616, we end up with 70.
Fetch the next digit (5) from the dividend, attach it to 70 and continue: 705 / 78

Let's proceed to step 5:
705 divided by 78 is 9 with a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 879.0
Deduct 702 from 705 and we're left with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 78

Let's proceed to step 6:
78 can be fit into 39 0 times, resulting in a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 8790.0
Subtract 0 from 39 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Step 7:
390 divided by 78 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 8790.5
Subtracting 390 from 390 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
If we divide 0 by 78, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 8790.5
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
The number 78 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 8790.5
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 8790.5, and the remainder is 0.0.