We look at the division of 42091803 by 54 
Our goal is to divide 42091803 by 54.

Let's proceed to step 1:
54 goes into 4 0 times with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 54

Going ahead to step 2:
When dividing 42 by 54, we get 0 with a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Grab the next digit (0) from the dividend, add it to 42, then carry on: 420 / 54

Moving on to step 3:
When dividing 420 by 54, we get 7 with a remainder of 42.
The next digit of our result is 7. 
Result so far: 7.0
If we take 378 away from 420, we end up with 42.
Take the next digit (9) from the dividend and append it to 42, then repeat: 429 / 54

Moving on to step 4:
54 can be fit into 429 7 times, resulting in a remainder of 51.
The number 7 becomes the next digit in our result. 
Result so far: 77.0
If we take 378 away from 429, we end up with 51.
Include the next digit (1) from the dividend after 51, then repeat: 511 / 54

Let's proceed to step 5:
The number 54 fits into 511 9 times, leaving a remainder of 25.
Record the quotient 9 as the next digit in the result. 
Result so far: 779.0
Deduct 486 from 511 and we're left with 25.
Fetch the next digit (8) from the dividend, attach it to 25 and continue: 258 / 54

On to step 6:
258 divided by 54 is 4 with a remainder of 42.
The next digit of our result is 4. 
Result so far: 7794.0
The remainder is 42 after subtracting 216 from 258.
Fetch the next digit (0) from the dividend, attach it to 42 and continue: 420 / 54

Moving on to step 7:
420 divided by 54 is 7 with a remainder of 42.
Use 7 as the next digit of our solution. 
Result so far: 77947.0
Subtracting 378 from 420 leaves us with 42.
Grab the next digit (3) from the dividend, add it to 42, then carry on: 423 / 54

Going ahead to step 8:
54 can be fit into 423 7 times, resulting in a remainder of 45.
Put 7 as the next digit of the answer. 
Result so far: 779477.0
The remainder is 45 after subtracting 378 from 423.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 9:
54 can be fit into 450 8 times, resulting in a remainder of 18.
Write down 8 as next digit of the result. 
Result so far: 779477.8
If we subtract 432 from 450, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 10:
54 goes into 180 3 times with a remainder of 18.
Use 3 as the next digit of our solution. 
Result so far: 779477.83
Subtract 162 from 180 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 11:
When dividing 180 by 54, we get 3 with a remainder of 18.
The next digit of our result is 3. 
Result so far: 779477.833
The remainder is 18 after subtracting 162 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final outcome is 779477.833, with a leftover of 0.0018.