We look at the division of 18643995 by 485 
Let's see how many times 485 fits into 18643995.

On to step 1:
The number 485 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 485

Step 2:
When dividing 18 by 485, we get 0 with a remainder of 18.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 18, we get 18.
Append the next digit (6) from the dividend to 18 and continue with: 186 / 485

Going ahead to step 3:
485 can be fit into 186 0 times, resulting in a remainder of 186.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 186 after subtracting 0 from 186.
Take the next digit (4) from the dividend and append it to 186, then repeat: 1864 / 485

On to step 4:
The number 485 fits into 1864 3 times, leaving a remainder of 409.
The next digit of our result is 3. 
Result so far: 3.0
Subtracting 1455 from 1864 leaves us with 409.
Grab the next digit (3) from the dividend, add it to 409, then carry on: 4093 / 485

Let's proceed to step 5:
4093 divided by 485 is 8 with a remainder of 213.
Use 8 as the next digit of our solution. 
Result so far: 38.0
If we subtract 3880 from 4093, we get 213.
Append the next digit (9) from the dividend to 213 and continue with: 2139 / 485

Moving on to step 6:
If we divide 2139 by 485, we get 4 and a remainder of 199.
The number 4 becomes the next digit in our result. 
Result so far: 384.0
The remainder is 199 after subtracting 1940 from 2139.
Fetch the next digit (9) from the dividend, attach it to 199 and continue: 1999 / 485

Moving on to step 7:
If we divide 1999 by 485, we get 4 and a remainder of 59.
Record the quotient 4 as the next digit in the result. 
Result so far: 3844.0
Subtract 1940 from 1999 to get 59.
Append the next digit (5) from the dividend to 59 and continue with: 595 / 485

Going ahead to step 8:
595 divided by 485 is 1 with a remainder of 110.
Write down 1 as next digit of the result. 
Result so far: 38441.0
Subtracting 485 from 595 leaves us with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

On to step 9:
If we divide 1100 by 485, we get 2 and a remainder of 130.
Put 2 as the next digit of the answer. 
Result so far: 38441.2
If we take 970 away from 1100, we end up with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Going ahead to step 10:
1300 divided by 485 is 2 with a remainder of 330.
Use 2 as the next digit of our solution. 
Result so far: 38441.22
The remainder is 330 after subtracting 970 from 1300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

The final result is 38441.22 with a remainder of 0.33.