286668 ÷ 80 
We're looking to find how many times 80 goes into 286668.

Step 1:
If we divide 2 by 80, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 80

Step 2:
If we divide 28 by 80, we get 0 and a remainder of 28.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 28, we get 28.
Append the next digit (6) from the dividend to 28 and continue with: 286 / 80

Step 3:
If we divide 286 by 80, we get 3 and a remainder of 46.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 46 after subtracting 240 from 286.
Bring next digit (6) of the dividend behind the 46 and repeat the process: 466 / 80

Step 4:
80 goes into 466 5 times with a remainder of 66.
Record the quotient 5 as the next digit in the result. 
Result so far: 35.0
Subtract 400 from 466 to get 66.
Include the next digit (6) from the dividend after 66, then repeat: 666 / 80

Let's proceed to step 5:
If we divide 666 by 80, we get 8 and a remainder of 26.
The number 8 becomes the next digit in our result. 
Result so far: 358.0
Deduct 640 from 666 and we're left with 26.
Include the next digit (8) from the dividend after 26, then repeat: 268 / 80

Let's proceed to step 6:
When dividing 268 by 80, we get 3 with a remainder of 28.
The number 3 becomes the next digit in our result. 
Result so far: 3583.0
The remainder is 28 after subtracting 240 from 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 7:
The number 80 fits into 280 3 times, leaving a remainder of 40.
Write down 3 as next digit of the result. 
Result so far: 3583.3
Deduct 240 from 280 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 8:
If we divide 400 by 80, we get 5 and a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 3583.35
Subtract 400 from 400 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
80 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 3583.35
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 10:
0 divided by 80 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 3583.35
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 3583.35 with a remainder of 0.0.