667170 ÷ 78 
We want to figure out the number of times 667170 can be divided by 78.

Step 1:
78 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 78

Step 2:
78 can be fit into 66 0 times, resulting in a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Grab the next digit (7) from the dividend, add it to 66, then carry on: 667 / 78

On to step 3:
78 can be fit into 667 8 times, resulting in a remainder of 43.
The next digit of our result is 8. 
Result so far: 8.0
If we subtract 624 from 667, we get 43.
Include the next digit (1) from the dividend after 43, then repeat: 431 / 78

Let's proceed to step 4:
When dividing 431 by 78, we get 5 with a remainder of 41.
The number 5 becomes the next digit in our result. 
Result so far: 85.0
Subtract 390 from 431 to get 41.
Append the next digit (7) from the dividend to 41 and continue with: 417 / 78

Going ahead to step 5:
78 can be fit into 417 5 times, resulting in a remainder of 27.
The next digit of our result is 5. 
Result so far: 855.0
Deduct 390 from 417 and we're left with 27.
Fetch the next digit (0) from the dividend, attach it to 27 and continue: 270 / 78

Advancing to step 6:
When dividing 270 by 78, we get 3 with a remainder of 36.
Write down 3 as next digit of the result. 
Result so far: 8553.0
Subtract 234 from 270 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 7:
78 can be fit into 360 4 times, resulting in a remainder of 48.
Write down 4 as next digit of the result. 
Result so far: 8553.4
The remainder is 48 after subtracting 312 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 8:
The number 78 fits into 480 6 times, leaving a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 8553.46
Deduct 468 from 480 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 9:
When dividing 120 by 78, we get 1 with a remainder of 42.
The number 1 becomes the next digit in our result. 
Result so far: 8553.461
If we take 78 away from 120, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 10:
420 divided by 78 is 5 with a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 8553.4615
If we subtract 390 from 420, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 11:
78 can be fit into 300 3 times, resulting in a remainder of 66.
Write down 3 as next digit of the result. 
Result so far: 8553.46153
The remainder is 66 after subtracting 234 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Let's proceed to step 12:
78 can be fit into 660 8 times, resulting in a remainder of 36.
The number 8 becomes the next digit in our result. 
Result so far: 8553.461538
The remainder is 36 after subtracting 624 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 13:
If we divide 360 by 78, we get 4 and a remainder of 48.
Record the quotient 4 as the next digit in the result. 
Result so far: 8553.4615384
Subtracting 312 from 360 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 14:
78 goes into 480 6 times with a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 8553.46153846
Deduct 468 from 480 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

In conclusion, the division gives 8553.46153846 with a balance of 1.2e-08.