Let's divide 678660 by 85
We want to figure out the number of times 678660 can be divided by 85.

On to step 1:
85 goes into 6 0 times with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Append the next digit (7) from the dividend to 6 and continue with: 67 / 85

Let's proceed to step 2:
85 goes into 67 0 times with a remainder of 67.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 67 and we're left with 67.
Include the next digit (8) from the dividend after 67, then repeat: 678 / 85

Step 3:
The number 85 fits into 678 7 times, leaving a remainder of 83.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we subtract 595 from 678, we get 83.
Take the next digit (6) from the dividend and append it to 83, then repeat: 836 / 85

Going ahead to step 4:
85 can be fit into 836 9 times, resulting in a remainder of 71.
Put 9 as the next digit of the answer. 
Result so far: 79.0
If we subtract 765 from 836, we get 71.
Include the next digit (6) from the dividend after 71, then repeat: 716 / 85

Going ahead to step 5:
85 can be fit into 716 8 times, resulting in a remainder of 36.
Put 8 as the next digit of the answer. 
Result so far: 798.0
Deduct 680 from 716 and we're left with 36.
Include the next digit (0) from the dividend after 36, then repeat: 360 / 85

Advancing to step 6:
360 divided by 85 is 4 with a remainder of 20.
Use 4 as the next digit of our solution. 
Result so far: 7984.0
Subtracting 340 from 360 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 7:
When dividing 200 by 85, we get 2 with a remainder of 30.
The next digit of our result is 2. 
Result so far: 7984.2
Subtracting 170 from 200 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 8:
When dividing 300 by 85, we get 3 with a remainder of 45.
The next digit of our result is 3. 
Result so far: 7984.23
If we take 255 away from 300, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 9:
450 divided by 85 is 5 with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 7984.235
The remainder is 25 after subtracting 425 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 10:
The number 85 fits into 250 2 times, leaving a remainder of 80.
The number 2 becomes the next digit in our result. 
Result so far: 7984.2352
Subtract 170 from 250 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 11:
85 can be fit into 800 9 times, resulting in a remainder of 35.
Use 9 as the next digit of our solution. 
Result so far: 7984.23529
Subtracting 765 from 800 leaves us with 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 12:
When dividing 350 by 85, we get 4 with a remainder of 10.
Write down 4 as next digit of the result. 
Result so far: 7984.235294
If we subtract 340 from 350, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 13:
100 divided by 85 is 1 with a remainder of 15.
Write down 1 as next digit of the result. 
Result so far: 7984.2352941
Subtract 85 from 100 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 14:
If we divide 150 by 85, we get 1 and a remainder of 65.
Record the quotient 1 as the next digit in the result. 
Result so far: 7984.23529411
Deduct 85 from 150 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

The final outcome is 7984.23529411, with a leftover of 6.5e-08.