We look at the division of 648397 by 54 
We're looking to find how many times 54 goes into 648397.

Going ahead to step 1:
54 goes into 6 0 times with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 54

Let's proceed to step 2:
64 divided by 54 is 1 with a remainder of 10.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 10 after subtracting 54 from 64.
Include the next digit (8) from the dividend after 10, then repeat: 108 / 54

Moving on to step 3:
The number 54 fits into 108 2 times, leaving a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtract 108 from 108 to get 0.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 54

Let's proceed to step 4:
3 divided by 54 is 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 120.0
Subtracting 0 from 3 leaves us with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 54

Moving on to step 5:
The number 54 fits into 39 0 times, leaving a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 1200.0
Subtract 0 from 39 to get 39.
Bring next digit (7) of the dividend behind the 39 and repeat the process: 397 / 54

Going ahead to step 6:
If we divide 397 by 54, we get 7 and a remainder of 19.
Use 7 as the next digit of our solution. 
Result so far: 12007.0
Subtracting 378 from 397 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 7:
54 goes into 190 3 times with a remainder of 28.
The number 3 becomes the next digit in our result. 
Result so far: 12007.3
The remainder is 28 after subtracting 162 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 8:
54 goes into 280 5 times with a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 12007.35
Subtract 270 from 280 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 9:
When dividing 100 by 54, we get 1 with a remainder of 46.
Put 1 as the next digit of the answer. 
Result so far: 12007.351
If we subtract 54 from 100, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 10:
460 divided by 54 is 8 with a remainder of 28.
Use 8 as the next digit of our solution. 
Result so far: 12007.3518
Subtracting 432 from 460 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 11:
If we divide 280 by 54, we get 5 and a remainder of 10.
The next digit of our result is 5. 
Result so far: 12007.35185
The remainder is 10 after subtracting 270 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 12:
100 divided by 54 is 1 with a remainder of 46.
Put 1 as the next digit of the answer. 
Result so far: 12007.351851
Subtracting 54 from 100 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 13:
54 can be fit into 460 8 times, resulting in a remainder of 28.
Use 8 as the next digit of our solution. 
Result so far: 12007.3518518
Subtract 432 from 460 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 14:
280 divided by 54 is 5 with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 12007.35185185
Subtracting 270 from 280 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final outcome is 12007.35185185, with a leftover of 1e-08.