We divide 19893 by 20
We're looking to find how many times 20 goes into 19893.

Let's proceed to step 1:
When dividing 1 by 20, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 20

Moving on to step 2:
The number 20 fits into 19 0 times, leaving a remainder of 19.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 19 leaves us with 19.
Fetch the next digit (8) from the dividend, attach it to 19 and continue: 198 / 20

Advancing to step 3:
The number 20 fits into 198 9 times, leaving a remainder of 18.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
If we subtract 180 from 198, we get 18.
Include the next digit (9) from the dividend after 18, then repeat: 189 / 20

Step 4:
The number 20 fits into 189 9 times, leaving a remainder of 9.
The number 9 becomes the next digit in our result. 
Result so far: 99.0
If we subtract 180 from 189, we get 9.
Grab the next digit (3) from the dividend, add it to 9, then carry on: 93 / 20

On to step 5:
20 can be fit into 93 4 times, resulting in a remainder of 13.
Put 4 as the next digit of the answer. 
Result so far: 994.0
Deduct 80 from 93 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 6:
If we divide 130 by 20, we get 6 and a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 994.6
If we take 120 away from 130, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 7:
The number 20 fits into 100 5 times, leaving a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 994.65
If we subtract 100 from 100, 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.

Let's proceed to step 8:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 994.65
The remainder is 0 after subtracting 0 from 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:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 994.65
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 final outcome is 994.65, with a leftover of 0.0.