We're dividing 218686 by 3 
We want to figure out the number of times 218686 can be divided by 3.

Going ahead to step 1:
The number 3 fits into 2 0 times, leaving a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 3

Going ahead to step 2:
If we divide 21 by 3, we get 7 and a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 0 after subtracting 21 from 21.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 3

Let's proceed to step 3:
3 can be fit into 8 2 times, resulting in a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 72.0
The remainder is 2 after subtracting 6 from 8.
Fetch the next digit (6) from the dividend, attach it to 2 and continue: 26 / 3

On to step 4:
3 can be fit into 26 8 times, resulting in a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 728.0
Subtracting 24 from 26 leaves us with 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 3

On to step 5:
28 divided by 3 is 9 with a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 7289.0
Subtract 27 from 28 to get 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 3

On to step 6:
When dividing 16 by 3, we get 5 with a remainder of 1.
The number 5 becomes the next digit in our result. 
Result so far: 72895.0
Deduct 15 from 16 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
The number 3 fits into 10 3 times, leaving a remainder of 1.
The next digit of our result is 3. 
Result so far: 72895.3
If we subtract 9 from 10, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 8:
The number 3 fits into 10 3 times, leaving a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 72895.33
The remainder is 1 after subtracting 9 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The quotient of the division is 72895.33, and the remainder is 0.001.