866285 ÷ 5 
We want to figure out the number of times 866285 can be divided by 5.

Advancing to step 1:
When dividing 8 by 5, we get 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 5 from 8 to get 3.
Include the next digit (6) from the dividend after 3, then repeat: 36 / 5

On to step 2:
If we divide 36 by 5, we get 7 and a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 17.0
Subtracting 35 from 36 leaves us with 1.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 5

On to step 3:
If we divide 16 by 5, we get 3 and a remainder of 1.
The next digit of our result is 3. 
Result so far: 173.0
The remainder is 1 after subtracting 15 from 16.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 5

Moving on to step 4:
12 divided by 5 is 2 with a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 1732.0
Subtract 10 from 12 to get 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 5

Let's proceed to step 5:
5 goes into 28 5 times with a remainder of 3.
The next digit of our result is 5. 
Result so far: 17325.0
Subtract 25 from 28 to get 3.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 5

Step 6:
5 can be fit into 35 7 times, resulting in a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 173257.0
Subtracting 35 from 35 leaves us 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.

Let's proceed to step 7:
5 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 173257.0
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.

On to step 8:
The number 5 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 173257.0
Deduct 0 from 0 and we're left 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 173257.0 with a remainder of 0.0.