455397 ÷ 54 
Let's see how many times 54 fits into 455397.

Let's proceed to step 1:
54 can be fit into 4 0 times, resulting in a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 54

Step 2:
45 divided by 54 is 0 with a remainder of 45.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 45 to get 45.
Append the next digit (5) from the dividend to 45 and continue with: 455 / 54

Advancing to step 3:
54 goes into 455 8 times with a remainder of 23.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we subtract 432 from 455, we get 23.
Append the next digit (3) from the dividend to 23 and continue with: 233 / 54

On to step 4:
If we divide 233 by 54, we get 4 and a remainder of 17.
Record the quotient 4 as the next digit in the result. 
Result so far: 84.0
The remainder is 17 after subtracting 216 from 233.
Include the next digit (9) from the dividend after 17, then repeat: 179 / 54

Let's proceed to step 5:
The number 54 fits into 179 3 times, leaving a remainder of 17.
Put 3 as the next digit of the answer. 
Result so far: 843.0
If we take 162 away from 179, we end up with 17.
Include the next digit (7) from the dividend after 17, then repeat: 177 / 54

Advancing to step 6:
54 can be fit into 177 3 times, resulting in a remainder of 15.
The number 3 becomes the next digit in our result. 
Result so far: 8433.0
Subtract 162 from 177 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 7:
150 divided by 54 is 2 with a remainder of 42.
The number 2 becomes the next digit in our result. 
Result so far: 8433.2
Subtracting 108 from 150 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 8:
When dividing 420 by 54, we get 7 with a remainder of 42.
The next digit of our result is 7. 
Result so far: 8433.27
If we take 378 away from 420, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 9:
54 goes into 420 7 times with a remainder of 42.
Write down 7 as next digit of the result. 
Result so far: 8433.277
If we subtract 378 from 420, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

The final outcome is 8433.277, with a leftover of 0.0042.