We look at the division of 251034 by 20 
Let's see how many times 20 fits into 251034.

Step 1:
When dividing 2 by 20, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 20

Step 2:
20 goes into 25 1 times with a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 20 from 25 leaves us with 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 20

On to step 3:
20 can be fit into 51 2 times, resulting in a remainder of 11.
The next digit of our result is 2. 
Result so far: 12.0
Subtract 40 from 51 to get 11.
Bring next digit (0) of the dividend behind the 11 and repeat the process: 110 / 20

Let's proceed to step 4:
20 goes into 110 5 times with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 125.0
Subtract 100 from 110 to get 10.
Take the next digit (3) from the dividend and append it to 10, then repeat: 103 / 20

Advancing to step 5:
The number 20 fits into 103 5 times, leaving a remainder of 3.
Write down 5 as next digit of the result. 
Result so far: 1255.0
Subtract 100 from 103 to get 3.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 20

Step 6:
20 goes into 34 1 times with a remainder of 14.
The next digit of our result is 1. 
Result so far: 12551.0
Deduct 20 from 34 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 7:
20 goes into 140 7 times with a remainder of 0.
Record the quotient 7 as the next digit in the result. 
Result so far: 12551.7
If we take 140 away from 140, 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.

Step 8:
0 divided by 20 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 12551.7
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.

Advancing to step 9:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 12551.7
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.

The final result is 12551.7 with a remainder of 0.0.