234458 divided by 20 
We want to figure out the number of times 234458 can be divided by 20.

Going ahead to step 1:
If we divide 2 by 20, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 20

Step 2:
20 can be fit into 23 1 times, resulting in a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 20 from 23, we get 3.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 20

Moving on to step 3:
20 goes into 34 1 times with a remainder of 14.
Write down 1 as next digit of the result. 
Result so far: 11.0
The remainder is 14 after subtracting 20 from 34.
Include the next digit (4) from the dividend after 14, then repeat: 144 / 20

Advancing to step 4:
144 divided by 20 is 7 with a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 117.0
If we subtract 140 from 144, we get 4.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 20

Step 5:
20 goes into 45 2 times with a remainder of 5.
The next digit of our result is 2. 
Result so far: 1172.0
Deduct 40 from 45 and we're left with 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 20

Moving on to step 6:
When dividing 58 by 20, we get 2 with a remainder of 18.
The next digit of our result is 2. 
Result so far: 11722.0
Deduct 40 from 58 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 7:
The number 20 fits into 180 9 times, leaving a remainder of 0.
Write down 9 as next digit of the result. 
Result so far: 11722.9
Subtract 180 from 180 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 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: 11722.9
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.

Advancing 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: 11722.9
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 outcome is 11722.9, with a leftover of 0.0.