86668479 ÷ 678 
Let's see how many times 678 fits into 86668479.

Advancing to step 1:
678 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 678

Advancing to step 2:
When dividing 86 by 678, we get 0 with a remainder of 86.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 86 and we're left with 86.
Fetch the next digit (6) from the dividend, attach it to 86 and continue: 866 / 678

On to step 3:
866 divided by 678 is 1 with a remainder of 188.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 678 from 866, we get 188.
Include the next digit (6) from the dividend after 188, then repeat: 1886 / 678

On to step 4:
1886 divided by 678 is 2 with a remainder of 530.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtracting 1356 from 1886 leaves us with 530.
Take the next digit (8) from the dividend and append it to 530, then repeat: 5308 / 678

Moving on to step 5:
When dividing 5308 by 678, we get 7 with a remainder of 562.
The next digit of our result is 7. 
Result so far: 127.0
If we subtract 4746 from 5308, we get 562.
Grab the next digit (4) from the dividend, add it to 562, then carry on: 5624 / 678

On to step 6:
5624 divided by 678 is 8 with a remainder of 200.
The next digit of our result is 8. 
Result so far: 1278.0
Subtracting 5424 from 5624 leaves us with 200.
Bring next digit (7) of the dividend behind the 200 and repeat the process: 2007 / 678

Step 7:
678 goes into 2007 2 times with a remainder of 651.
The next digit of our result is 2. 
Result so far: 12782.0
Subtract 1356 from 2007 to get 651.
Fetch the next digit (9) from the dividend, attach it to 651 and continue: 6519 / 678

Moving on to step 8:
678 goes into 6519 9 times with a remainder of 417.
The next digit of our result is 9. 
Result so far: 127829.0
If we take 6102 away from 6519, we end up with 417.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4170, and continue the process.

Step 9:
678 can be fit into 4170 6 times, resulting in a remainder of 102.
The number 6 becomes the next digit in our result. 
Result so far: 127829.6
If we subtract 4068 from 4170, we get 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Going ahead to step 10:
678 goes into 1020 1 times with a remainder of 342.
Use 1 as the next digit of our solution. 
Result so far: 127829.61
If we take 678 away from 1020, we end up with 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

On to step 11:
678 can be fit into 3420 5 times, resulting in a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 127829.615
Deduct 3390 from 3420 and we're left 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.

Step 12:
300 divided by 678 is 0 with a remainder of 300.
The number 0 becomes the next digit in our result. 
Result so far: 127829.615
If we take 0 away from 300, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Going ahead to step 13:
When dividing 3000 by 678, we get 4 with a remainder of 288.
Record the quotient 4 as the next digit in the result. 
Result so far: 127829.61504
The remainder is 288 after subtracting 2712 from 3000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Step 14:
678 goes into 2880 4 times with a remainder of 168.
The number 4 becomes the next digit in our result. 
Result so far: 127829.615044
Deduct 2712 from 2880 and we're left with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

In conclusion, the division gives 127829.615044 with a balance of 1.68e-05.