We're dividing 189593 by 20 
We're looking to find how many times 20 goes into 189593.

On to step 1:
20 can be fit into 1 0 times, resulting in a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 20

Going ahead to step 2:
If we divide 18 by 20, we get 0 and a remainder of 18.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 18 and we're left with 18.
Include the next digit (9) from the dividend after 18, then repeat: 189 / 20

On to step 3:
189 divided by 20 is 9 with a remainder of 9.
The next digit of our result is 9. 
Result so far: 9.0
The remainder is 9 after subtracting 180 from 189.
Append the next digit (5) from the dividend to 9 and continue with: 95 / 20

Advancing to step 4:
If we divide 95 by 20, we get 4 and a remainder of 15.
The next digit of our result is 4. 
Result so far: 94.0
Subtract 80 from 95 to get 15.
Grab the next digit (9) from the dividend, add it to 15, then carry on: 159 / 20

On to step 5:
20 can be fit into 159 7 times, resulting in a remainder of 19.
The next digit of our result is 7. 
Result so far: 947.0
Deduct 140 from 159 and we're left with 19.
Fetch the next digit (3) from the dividend, attach it to 19 and continue: 193 / 20

Going ahead to step 6:
193 divided by 20 is 9 with a remainder of 13.
Write down 9 as next digit of the result. 
Result so far: 9479.0
The remainder is 13 after subtracting 180 from 193.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 7:
When dividing 130 by 20, we get 6 with a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 9479.6
Subtracting 120 from 130 leaves us 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.

Moving on to step 8:
20 goes into 100 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 9479.65
Deduct 100 from 100 and we're left 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.

Going ahead to step 9:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 9479.65
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 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: 9479.65
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.

After the division, we end up with 9479.65 and a remainder of 0.0.