743409 ÷ 54 
Our goal is to divide 743409 by 54.

Going ahead to step 1:
If we divide 7 by 54, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Include the next digit (4) from the dividend after 7, then repeat: 74 / 54

Step 2:
If we divide 74 by 54, we get 1 and a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 20 after subtracting 54 from 74.
Grab the next digit (3) from the dividend, add it to 20, then carry on: 203 / 54

Going ahead to step 3:
The number 54 fits into 203 3 times, leaving a remainder of 41.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
If we take 162 away from 203, we end up with 41.
Bring next digit (4) of the dividend behind the 41 and repeat the process: 414 / 54

Step 4:
If we divide 414 by 54, we get 7 and a remainder of 36.
Put 7 as the next digit of the answer. 
Result so far: 137.0
The remainder is 36 after subtracting 378 from 414.
Bring next digit (0) of the dividend behind the 36 and repeat the process: 360 / 54

Moving on to step 5:
54 goes into 360 6 times with a remainder of 36.
Use 6 as the next digit of our solution. 
Result so far: 1376.0
Subtract 324 from 360 to get 36.
Grab the next digit (9) from the dividend, add it to 36, then carry on: 369 / 54

Moving on to step 6:
The number 54 fits into 369 6 times, leaving a remainder of 45.
Put 6 as the next digit of the answer. 
Result so far: 13766.0
Subtract 324 from 369 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 7:
450 divided by 54 is 8 with a remainder of 18.
Write down 8 as next digit of the result. 
Result so far: 13766.8
Subtracting 432 from 450 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 8:
If we divide 180 by 54, we get 3 and a remainder of 18.
Write down 3 as next digit of the result. 
Result so far: 13766.83
If we subtract 162 from 180, 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 9:
When dividing 180 by 54, we get 3 with a remainder of 18.
Put 3 as the next digit of the answer. 
Result so far: 13766.833
Subtracting 162 from 180 leaves us with 18.
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 13766.833, with a leftover of 0.0018.