117588 ÷ 20 
We want to figure out the number of times 117588 can be divided by 20.

Going ahead to step 1:
The number 20 fits into 1 0 times, leaving 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.
Include the next digit (1) from the dividend after 1, then repeat: 11 / 20

Moving on to step 2:
20 can be fit into 11 0 times, resulting in a remainder of 11.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 11, we end up with 11.
Bring next digit (7) of the dividend behind the 11 and repeat the process: 117 / 20

Moving on to step 3:
The number 20 fits into 117 5 times, leaving a remainder of 17.
The next digit of our result is 5. 
Result so far: 5.0
Subtract 100 from 117 to get 17.
Grab the next digit (5) from the dividend, add it to 17, then carry on: 175 / 20

Advancing to step 4:
If we divide 175 by 20, we get 8 and a remainder of 15.
Record the quotient 8 as the next digit in the result. 
Result so far: 58.0
Subtract 160 from 175 to get 15.
Take the next digit (8) from the dividend and append it to 15, then repeat: 158 / 20

Advancing to step 5:
When dividing 158 by 20, we get 7 with a remainder of 18.
Put 7 as the next digit of the answer. 
Result so far: 587.0
Subtract 140 from 158 to get 18.
Fetch the next digit (8) from the dividend, attach it to 18 and continue: 188 / 20

Going ahead to step 6:
If we divide 188 by 20, we get 9 and a remainder of 8.
Write down 9 as next digit of the result. 
Result so far: 5879.0
If we take 180 away from 188, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 7:
80 divided by 20 is 4 with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 5879.4
Subtracting 80 from 80 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.

Moving on to step 8:
If we divide 0 by 20, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 5879.4
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.

Moving on to step 9:
0 divided by 20 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 5879.4
Deduct 0 from 0 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.

The final result is 5879.4 with a remainder of 0.0.