We're dividing 12869178 by 685 
We're looking to find how many times 685 goes into 12869178.

On to step 1:
685 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 685

Going ahead to step 2:
The number 685 fits into 12 0 times, leaving a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Fetch the next digit (8) from the dividend, attach it to 12 and continue: 128 / 685

Going ahead to step 3:
The number 685 fits into 128 0 times, leaving a remainder of 128.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 128, we get 128.
Grab the next digit (6) from the dividend, add it to 128, then carry on: 1286 / 685

Going ahead to step 4:
If we divide 1286 by 685, we get 1 and a remainder of 601.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 685 from 1286 leaves us with 601.
Append the next digit (9) from the dividend to 601 and continue with: 6019 / 685

Moving on to step 5:
685 goes into 6019 8 times with a remainder of 539.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
Subtract 5480 from 6019 to get 539.
Include the next digit (1) from the dividend after 539, then repeat: 5391 / 685

On to step 6:
The number 685 fits into 5391 7 times, leaving a remainder of 596.
Record the quotient 7 as the next digit in the result. 
Result so far: 187.0
Deduct 4795 from 5391 and we're left with 596.
Fetch the next digit (7) from the dividend, attach it to 596 and continue: 5967 / 685

Going ahead to step 7:
685 can be fit into 5967 8 times, resulting in a remainder of 487.
Write down 8 as next digit of the result. 
Result so far: 1878.0
The remainder is 487 after subtracting 5480 from 5967.
Append the next digit (8) from the dividend to 487 and continue with: 4878 / 685

Let's proceed to step 8:
When dividing 4878 by 685, we get 7 with a remainder of 83.
Write down 7 as next digit of the result. 
Result so far: 18787.0
If we subtract 4795 from 4878, we get 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Advancing to step 9:
If we divide 830 by 685, we get 1 and a remainder of 145.
Put 1 as the next digit of the answer. 
Result so far: 18787.1
Deduct 685 from 830 and we're left with 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Moving on to step 10:
1450 divided by 685 is 2 with a remainder of 80.
Use 2 as the next digit of our solution. 
Result so far: 18787.12
If we subtract 1370 from 1450, we 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.

Let's proceed to step 11:
685 goes into 800 1 times with a remainder of 115.
Write down 1 as next digit of the result. 
Result so far: 18787.121
The remainder is 115 after subtracting 685 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Moving on to step 12:
The number 685 fits into 1150 1 times, leaving a remainder of 465.
Put 1 as the next digit of the answer. 
Result so far: 18787.1211
If we subtract 685 from 1150, we get 465.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4650, and continue the process.

The final outcome is 18787.1211, with a leftover of 0.00465.