We're dividing 803373 by 54 
Our goal is to divide 803373 by 54.

Let's proceed to step 1:
54 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 54

Let's proceed to step 2:
54 goes into 80 1 times with a remainder of 26.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 54 from 80 and we're left with 26.
Grab the next digit (3) from the dividend, add it to 26, then carry on: 263 / 54

On to step 3:
If we divide 263 by 54, we get 4 and a remainder of 47.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
Deduct 216 from 263 and we're left with 47.
Grab the next digit (3) from the dividend, add it to 47, then carry on: 473 / 54

Let's proceed to step 4:
54 goes into 473 8 times with a remainder of 41.
Use 8 as the next digit of our solution. 
Result so far: 148.0
The remainder is 41 after subtracting 432 from 473.
Include the next digit (7) from the dividend after 41, then repeat: 417 / 54

On to step 5:
If we divide 417 by 54, we get 7 and a remainder of 39.
The number 7 becomes the next digit in our result. 
Result so far: 1487.0
The remainder is 39 after subtracting 378 from 417.
Include the next digit (3) from the dividend after 39, then repeat: 393 / 54

Advancing to step 6:
When dividing 393 by 54, we get 7 with a remainder of 15.
The next digit of our result is 7. 
Result so far: 14877.0
Deduct 378 from 393 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 7:
When dividing 150 by 54, we get 2 with a remainder of 42.
Put 2 as the next digit of the answer. 
Result so far: 14877.2
If we take 108 away from 150, 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.

On to step 8:
The number 54 fits into 420 7 times, leaving a remainder of 42.
The number 7 becomes the next digit in our result. 
Result so far: 14877.27
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.

Advancing to step 9:
The number 54 fits into 420 7 times, leaving a remainder of 42.
The number 7 becomes the next digit in our result. 
Result so far: 14877.277
Deduct 378 from 420 and we're left 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.

The final outcome is 14877.277, with a leftover of 0.0042.