We look at the division of 415902 by 54 
We're looking to find how many times 54 goes into 415902.

On to step 1:
The number 54 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (1) from the dividend, attach it to 4 and continue: 41 / 54

On to step 2:
If we divide 41 by 54, we get 0 and a remainder of 41.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 41 leaves us with 41.
Bring next digit (5) of the dividend behind the 41 and repeat the process: 415 / 54

On to step 3:
54 can be fit into 415 7 times, resulting in a remainder of 37.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtracting 378 from 415 leaves us with 37.
Append the next digit (9) from the dividend to 37 and continue with: 379 / 54

Step 4:
379 divided by 54 is 7 with a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 77.0
Subtracting 378 from 379 leaves us with 1.
Fetch the next digit (0) from the dividend, attach it to 1 and continue: 10 / 54

Moving on to step 5:
The number 54 fits into 10 0 times, leaving a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 770.0
If we take 0 away from 10, we end up with 10.
Grab the next digit (2) from the dividend, add it to 10, then carry on: 102 / 54

Going ahead to step 6:
102 divided by 54 is 1 with a remainder of 48.
Put 1 as the next digit of the answer. 
Result so far: 7701.0
Deduct 54 from 102 and we're left 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.

Moving on to step 7:
When dividing 480 by 54, we get 8 with a remainder of 48.
Write down 8 as next digit of the result. 
Result so far: 7701.8
Subtracting 432 from 480 leaves us 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.

Advancing to step 8:
When dividing 480 by 54, we get 8 with a remainder of 48.
The number 8 becomes the next digit in our result. 
Result so far: 7701.88
If we take 432 away from 480, 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.

The final result is 7701.88 with a remainder of 0.048.