686006 ÷ 78 
We're looking to find how many times 78 goes into 686006.

Step 1:
If we divide 6 by 78, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 78

Step 2:
68 divided by 78 is 0 with a remainder of 68.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 68 and we're left with 68.
Grab the next digit (6) from the dividend, add it to 68, then carry on: 686 / 78

On to step 3:
78 can be fit into 686 8 times, resulting in a remainder of 62.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtract 624 from 686 to get 62.
Bring next digit (0) of the dividend behind the 62 and repeat the process: 620 / 78

Moving on to step 4:
When dividing 620 by 78, we get 7 with a remainder of 74.
Use 7 as the next digit of our solution. 
Result so far: 87.0
If we subtract 546 from 620, we get 74.
Fetch the next digit (0) from the dividend, attach it to 74 and continue: 740 / 78

Advancing to step 5:
78 goes into 740 9 times with a remainder of 38.
The number 9 becomes the next digit in our result. 
Result so far: 879.0
If we subtract 702 from 740, we get 38.
Fetch the next digit (6) from the dividend, attach it to 38 and continue: 386 / 78

Moving on to step 6:
When dividing 386 by 78, we get 4 with a remainder of 74.
The next digit of our result is 4. 
Result so far: 8794.0
Subtract 312 from 386 to get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 7:
740 divided by 78 is 9 with a remainder of 38.
Put 9 as the next digit of the answer. 
Result so far: 8794.9
Subtract 702 from 740 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 8:
78 can be fit into 380 4 times, resulting in a remainder of 68.
The number 4 becomes the next digit in our result. 
Result so far: 8794.94
If we take 312 away from 380, we end up 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.

Let's proceed to step 9:
78 goes into 680 8 times with a remainder of 56.
Use 8 as the next digit of our solution. 
Result so far: 8794.948
The remainder is 56 after subtracting 624 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 10:
When dividing 560 by 78, we get 7 with a remainder of 14.
Use 7 as the next digit of our solution. 
Result so far: 8794.9487
If we subtract 546 from 560, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 11:
If we divide 140 by 78, we get 1 and a remainder of 62.
The number 1 becomes the next digit in our result. 
Result so far: 8794.94871
If we take 78 away from 140, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Moving on to step 12:
When dividing 620 by 78, we get 7 with a remainder of 74.
Put 7 as the next digit of the answer. 
Result so far: 8794.948717
Subtracting 546 from 620 leaves us with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Let's proceed to step 13:
78 can be fit into 740 9 times, resulting in a remainder of 38.
Write down 9 as next digit of the result. 
Result so far: 8794.9487179
The remainder is 38 after subtracting 702 from 740.
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 14:
78 goes into 380 4 times with a remainder of 68.
Use 4 as the next digit of our solution. 
Result so far: 8794.94871794
Subtract 312 from 380 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

The final outcome is 8794.94871794, with a leftover of 6.8e-08.