We divide 864500 by 86
We want to figure out the number of times 864500 can be divided by 86.

On to step 1:
When dividing 8 by 86, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 86

Let's proceed to step 2:
If we divide 86 by 86, we get 1 and a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 86 from 86 leaves us with 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 86

Advancing to step 3:
The number 86 fits into 4 0 times, leaving a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
The remainder is 4 after subtracting 0 from 4.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 86

Step 4:
45 divided by 86 is 0 with a remainder of 45.
The number 0 becomes the next digit in our result. 
Result so far: 100.0
If we subtract 0 from 45, we get 45.
Append the next digit (0) from the dividend to 45 and continue with: 450 / 86

Advancing to step 5:
If we divide 450 by 86, we get 5 and a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 1005.0
Subtracting 430 from 450 leaves us with 20.
Include the next digit (0) from the dividend after 20, then repeat: 200 / 86

On to step 6:
The number 86 fits into 200 2 times, leaving a remainder of 28.
Write down 2 as next digit of the result. 
Result so far: 10052.0
If we subtract 172 from 200, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 7:
280 divided by 86 is 3 with a remainder of 22.
Put 3 as the next digit of the answer. 
Result so far: 10052.3
Subtract 258 from 280 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 8:
86 can be fit into 220 2 times, resulting in a remainder of 48.
Use 2 as the next digit of our solution. 
Result so far: 10052.32
The remainder is 48 after subtracting 172 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 9:
480 divided by 86 is 5 with a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 10052.325
Deduct 430 from 480 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 10:
86 can be fit into 500 5 times, resulting in a remainder of 70.
Use 5 as the next digit of our solution. 
Result so far: 10052.3255
Deduct 430 from 500 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Our division results in 10052.3255 with a remaining 0.0007.