We're dividing 86767957 by 309 
Let's see how many times 309 fits into 86767957.

On to step 1:
8 divided by 309 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 309

Step 2:
309 can be fit into 86 0 times, resulting in 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.
Append the next digit (7) from the dividend to 86 and continue with: 867 / 309

On to step 3:
309 goes into 867 2 times with a remainder of 249.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 618 away from 867, we end up with 249.
Fetch the next digit (6) from the dividend, attach it to 249 and continue: 2496 / 309

Let's proceed to step 4:
309 goes into 2496 8 times with a remainder of 24.
The next digit of our result is 8. 
Result so far: 28.0
If we take 2472 away from 2496, we end up with 24.
Grab the next digit (7) from the dividend, add it to 24, then carry on: 247 / 309

Advancing to step 5:
309 goes into 247 0 times with a remainder of 247.
The number 0 becomes the next digit in our result. 
Result so far: 280.0
If we subtract 0 from 247, we get 247.
Include the next digit (9) from the dividend after 247, then repeat: 2479 / 309

On to step 6:
2479 divided by 309 is 8 with a remainder of 7.
The next digit of our result is 8. 
Result so far: 2808.0
If we subtract 2472 from 2479, we get 7.
Fetch the next digit (5) from the dividend, attach it to 7 and continue: 75 / 309

Step 7:
When dividing 75 by 309, we get 0 with a remainder of 75.
Record the quotient 0 as the next digit in the result. 
Result so far: 28080.0
Deduct 0 from 75 and we're left with 75.
Take the next digit (7) from the dividend and append it to 75, then repeat: 757 / 309

Going ahead to step 8:
If we divide 757 by 309, we get 2 and a remainder of 139.
The next digit of our result is 2. 
Result so far: 280802.0
If we take 618 away from 757, we end up with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

On to step 9:
When dividing 1390 by 309, we get 4 with a remainder of 154.
The number 4 becomes the next digit in our result. 
Result so far: 280802.4
Deduct 1236 from 1390 and we're left with 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Going ahead to step 10:
The number 309 fits into 1540 4 times, leaving a remainder of 304.
Use 4 as the next digit of our solution. 
Result so far: 280802.44
Subtract 1236 from 1540 to get 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

The final outcome is 280802.44, with a leftover of 0.304.