We're dividing 13999 by 20 
Our goal is to divide 13999 by 20.

Step 1:
20 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 20

On to step 2:
When dividing 13 by 20, we get 0 with a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 13, we get 13.
Take the next digit (9) from the dividend and append it to 13, then repeat: 139 / 20

Moving on to step 3:
20 can be fit into 139 6 times, resulting in a remainder of 19.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtract 120 from 139 to get 19.
Append the next digit (9) from the dividend to 19 and continue with: 199 / 20

Moving on to step 4:
20 can be fit into 199 9 times, resulting in a remainder of 19.
Use 9 as the next digit of our solution. 
Result so far: 69.0
Subtracting 180 from 199 leaves us with 19.
Bring next digit (9) of the dividend behind the 19 and repeat the process: 199 / 20

Moving on to step 5:
20 can be fit into 199 9 times, resulting in a remainder of 19.
The next digit of our result is 9. 
Result so far: 699.0
If we take 180 away from 199, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 6:
20 can be fit into 190 9 times, resulting in a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 699.9
The remainder is 10 after subtracting 180 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 7:
20 goes into 100 5 times with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 699.95
Subtract 100 from 100 to 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.

Let's proceed to step 8:
If we divide 0 by 20, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 699.95
Subtracting 0 from 0 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.

Advancing to step 9:
When dividing 0 by 20, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 699.95
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.

The quotient of the division is 699.95, and the remainder is 0.0.