237231 ÷ 20 
Our goal is to divide 237231 by 20.

Moving on to step 1:
20 goes into 2 0 times with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Include the next digit (3) from the dividend after 2, then repeat: 23 / 20

Going ahead to step 2:
23 divided by 20 is 1 with a remainder of 3.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 20 from 23 to get 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 20

Let's proceed to step 3:
When dividing 37 by 20, we get 1 with a remainder of 17.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtract 20 from 37 to get 17.
Append the next digit (2) from the dividend to 17 and continue with: 172 / 20

Going ahead to step 4:
20 goes into 172 8 times with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 118.0
Subtracting 160 from 172 leaves us with 12.
Append the next digit (3) from the dividend to 12 and continue with: 123 / 20

Let's proceed to step 5:
If we divide 123 by 20, we get 6 and a remainder of 3.
The number 6 becomes the next digit in our result. 
Result so far: 1186.0
Deduct 120 from 123 and we're left with 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 20

Advancing to step 6:
20 goes into 31 1 times with a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 11861.0
Subtract 20 from 31 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 7:
20 goes into 110 5 times with a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 11861.5
Deduct 100 from 110 and we're left 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.

Step 8:
When dividing 100 by 20, we get 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 11861.55
If we take 100 away from 100, 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 11861.55, with a leftover of 0.0.