We look at the division of 125458 by 20 
Let's see how many times 20 fits into 125458.

Going ahead to step 1:
20 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 20

Let's proceed to step 2:
12 divided by 20 is 0 with a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Grab the next digit (5) from the dividend, add it to 12, then carry on: 125 / 20

Going ahead to step 3:
125 divided by 20 is 6 with a remainder of 5.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Subtracting 120 from 125 leaves us with 5.
Bring next digit (4) of the dividend behind the 5 and repeat the process: 54 / 20

Advancing to step 4:
The number 20 fits into 54 2 times, leaving a remainder of 14.
Write down 2 as next digit of the result. 
Result so far: 62.0
Subtract 40 from 54 to get 14.
Fetch the next digit (5) from the dividend, attach it to 14 and continue: 145 / 20

Advancing to step 5:
20 goes into 145 7 times with a remainder of 5.
Record the quotient 7 as the next digit in the result. 
Result so far: 627.0
Subtracting 140 from 145 leaves us with 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 20

Let's proceed to step 6:
If we divide 58 by 20, we get 2 and a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 6272.0
Subtracting 40 from 58 leaves us 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.

Advancing to step 7:
The number 20 fits into 180 9 times, leaving a remainder of 0.
The next digit of our result is 9. 
Result so far: 6272.9
Subtracting 180 from 180 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.

Going ahead 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: 6272.9
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.

Step 9:
20 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 6272.9
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.

The final outcome is 6272.9, with a leftover of 0.0.