We look at the division of 340439 by 54 
We want to figure out the number of times 340439 can be divided by 54.

On to step 1:
54 can be fit into 3 0 times, resulting in a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 54

Step 2:
If we divide 34 by 54, we get 0 and a remainder of 34.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 34 after subtracting 0 from 34.
Take the next digit (0) from the dividend and append it to 34, then repeat: 340 / 54

Moving on to step 3:
54 goes into 340 6 times with a remainder of 16.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
If we subtract 324 from 340, we get 16.
Append the next digit (4) from the dividend to 16 and continue with: 164 / 54

On to step 4:
54 can be fit into 164 3 times, resulting in a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 63.0
Deduct 162 from 164 and we're left with 2.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 54

Step 5:
When dividing 23 by 54, we get 0 with a remainder of 23.
Write down 0 as next digit of the result. 
Result so far: 630.0
Subtract 0 from 23 to get 23.
Include the next digit (9) from the dividend after 23, then repeat: 239 / 54

Let's proceed to step 6:
When dividing 239 by 54, we get 4 with a remainder of 23.
Put 4 as the next digit of the answer. 
Result so far: 6304.0
Subtract 216 from 239 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 7:
54 can be fit into 230 4 times, resulting in a remainder of 14.
The next digit of our result is 4. 
Result so far: 6304.4
Deduct 216 from 230 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 8:
If we divide 140 by 54, we get 2 and a remainder of 32.
Use 2 as the next digit of our solution. 
Result so far: 6304.42
Deduct 108 from 140 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 9:
The number 54 fits into 320 5 times, leaving a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 6304.425
If we take 270 away from 320, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 10:
54 goes into 500 9 times with a remainder of 14.
Write down 9 as next digit of the result. 
Result so far: 6304.4259
The remainder is 14 after subtracting 486 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 11:
When dividing 140 by 54, we get 2 with a remainder of 32.
The number 2 becomes the next digit in our result. 
Result so far: 6304.42592
If we subtract 108 from 140, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 12:
When dividing 320 by 54, we get 5 with a remainder of 50.
The next digit of our result is 5. 
Result so far: 6304.425925
If we take 270 away from 320, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 13:
The number 54 fits into 500 9 times, leaving a remainder of 14.
The next digit of our result is 9. 
Result so far: 6304.4259259
Deduct 486 from 500 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 14:
54 goes into 140 2 times with a remainder of 32.
Use 2 as the next digit of our solution. 
Result so far: 6304.42592592
If we take 108 away from 140, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final result is 6304.42592592 with a remainder of 3.2e-08.