We look at the division of 225390 by 54 
We want to figure out the number of times 225390 can be divided by 54.

On to step 1:
When dividing 2 by 54, we get 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (2) from the dividend to 2 and continue with: 22 / 54

Going ahead to step 2:
22 divided by 54 is 0 with a remainder of 22.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 22 leaves us with 22.
Take the next digit (5) from the dividend and append it to 22, then repeat: 225 / 54

Step 3:
54 goes into 225 4 times with a remainder of 9.
The next digit of our result is 4. 
Result so far: 4.0
The remainder is 9 after subtracting 216 from 225.
Take the next digit (3) from the dividend and append it to 9, then repeat: 93 / 54

Moving on to step 4:
93 divided by 54 is 1 with a remainder of 39.
The next digit of our result is 1. 
Result so far: 41.0
Deduct 54 from 93 and we're left with 39.
Include the next digit (9) from the dividend after 39, then repeat: 399 / 54

Moving on to step 5:
399 divided by 54 is 7 with a remainder of 21.
The next digit of our result is 7. 
Result so far: 417.0
Subtracting 378 from 399 leaves us with 21.
Include the next digit (0) from the dividend after 21, then repeat: 210 / 54

Step 6:
The number 54 fits into 210 3 times, leaving a remainder of 48.
Write down 3 as next digit of the result. 
Result so far: 4173.0
If we take 162 away from 210, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 7:
480 divided by 54 is 8 with a remainder of 48.
Record the quotient 8 as the next digit in the result. 
Result so far: 4173.8
The remainder is 48 after subtracting 432 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 8:
480 divided by 54 is 8 with a remainder of 48.
Use 8 as the next digit of our solution. 
Result so far: 4173.88
If we subtract 432 from 480, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

The final outcome is 4173.88, with a leftover of 0.048.