We look at the division of 225154 by 20 
We want to figure out the number of times 225154 can be divided by 20.

On to step 1:
When dividing 2 by 20, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Fetch the next digit (2) from the dividend, attach it to 2 and continue: 22 / 20

Step 2:
If we divide 22 by 20, we get 1 and a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 20 from 22, we get 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 20

Going ahead to step 3:
20 can be fit into 25 1 times, resulting in a remainder of 5.
The next digit of our result is 1. 
Result so far: 11.0
Subtracting 20 from 25 leaves us with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 20

Let's proceed to step 4:
51 divided by 20 is 2 with a remainder of 11.
The next digit of our result is 2. 
Result so far: 112.0
Subtracting 40 from 51 leaves us with 11.
Include the next digit (5) from the dividend after 11, then repeat: 115 / 20

On to step 5:
The number 20 fits into 115 5 times, leaving a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 1125.0
Subtract 100 from 115 to get 15.
Append the next digit (4) from the dividend to 15 and continue with: 154 / 20

Let's proceed to step 6:
The number 20 fits into 154 7 times, leaving a remainder of 14.
The next digit of our result is 7. 
Result so far: 11257.0
Subtract 140 from 154 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 7:
140 divided by 20 is 7 with a remainder of 0.
The next digit of our result is 7. 
Result so far: 11257.7
Deduct 140 from 140 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.

Going ahead to step 8:
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: 11257.7
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.

On 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: 11257.7
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 quotient of the division is 11257.7, and the remainder is 0.0.