863666 divided by 20 
We're looking to find how many times 20 goes into 863666.

Let's proceed to step 1:
When dividing 8 by 20, we get 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.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 20

Let's proceed to step 2:
When dividing 86 by 20, we get 4 with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 80 away from 86, we end up with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 20

Advancing to step 3:
20 goes into 63 3 times with a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 43.0
Subtracting 60 from 63 leaves us with 3.
Append the next digit (6) from the dividend to 3 and continue with: 36 / 20

Advancing to step 4:
20 can be fit into 36 1 times, resulting in a remainder of 16.
Put 1 as the next digit of the answer. 
Result so far: 431.0
If we take 20 away from 36, we end up with 16.
Include the next digit (6) from the dividend after 16, then repeat: 166 / 20

On to step 5:
When dividing 166 by 20, we get 8 with a remainder of 6.
Put 8 as the next digit of the answer. 
Result so far: 4318.0
The remainder is 6 after subtracting 160 from 166.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 20

Going ahead to step 6:
20 goes into 66 3 times with a remainder of 6.
The next digit of our result is 3. 
Result so far: 43183.0
The remainder is 6 after subtracting 60 from 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 7:
60 divided by 20 is 3 with a remainder of 0.
The next digit of our result is 3. 
Result so far: 43183.3
If we take 60 away from 60, 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.

Advancing to step 8:
When dividing 0 by 20, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 43183.3
If we subtract 0 from 0, we 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.

Going ahead to step 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 43183.3
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.

In conclusion, the division gives 43183.3 with a balance of 0.0.