We divide 170019 by 20
We're looking to find how many times 20 goes into 170019.

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
If we take 0 away from 1, we end up with 1.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 20

Moving on to step 2:
When dividing 17 by 20, we get 0 with a remainder of 17.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 17 to get 17.
Grab the next digit (0) from the dividend, add it to 17, then carry on: 170 / 20

Going ahead to step 3:
When dividing 170 by 20, we get 8 with a remainder of 10.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we take 160 away from 170, we end up with 10.
Include the next digit (0) from the dividend after 10, then repeat: 100 / 20

Going ahead to step 4:
20 can be fit into 100 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 85.0
Subtract 100 from 100 to get 0.
Take the next digit (1) from the dividend and append it to 0, then repeat: 1 / 20

Going ahead to step 5:
20 can be fit into 1 0 times, resulting in a remainder of 1.
The next digit of our result is 0. 
Result so far: 850.0
If we subtract 0 from 1, we get 1.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 20

Let's proceed to step 6:
20 can be fit into 19 0 times, resulting in a remainder of 19.
Put 0 as the next digit of the answer. 
Result so far: 8500.0
Subtracting 0 from 19 leaves us 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.

Step 7:
20 can be fit into 190 9 times, resulting in a remainder of 10.
Record the quotient 9 as the next digit in the result. 
Result so far: 8500.9
If we subtract 180 from 190, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
If we divide 100 by 20, we get 5 and a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 8500.95
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.

On 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: 8500.95
Subtract 0 from 0 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.

Moving on to step 10:
When dividing 0 by 20, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 8500.95
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.

The final outcome is 8500.95, with a leftover of 0.0.