Which of the following is the correct arrangement of last step ?

The logic followed here is:

In Step I, if the six digit numbers having first and last both are odd or even number then subtract 1 at even place digits if first number and last numbers are odd and even or vice – versa then add 1 at odd place digits and rest numbers remain same. For example, 376824 having first number odd and last number even then we subtract 1 from odd place digits i.e. 7+1 =8, 8+1=9, 4+1=5 which gives 386925.

Step I: 386925   842865   594863   657483    742632   405749

In Step II, Add square of highest digit in respective numbers. For example, 386925 highest digit is 9 whose square is 81. Therefore, 386925 + 81 = 387006.

Step II: 387006   842929   594944   657547    742681    405830

In Step III, multiply first and last digits, middle digits with each other and write these digits at starting of that number and rest remain same. For example, 386806  first digit 3 * 6 last digit = 18 and middle digits 6*8 = 48 which gives 184880.

Step III: 180006  721842   203694   423554    71248   4003

In Step IV, Remove all odd digits from a given number and then write in ascending order.

Step IV:  68   400   424   2064    2842    84880

(Since 000 before 68 in the number 00068 have no value, so only 68 has been considered.)    

In step V, take the positive difference of square of first digit and square of second digit of a number and write in first place of that number and rest remain same. 

Step V:  28    160    124    464    6042    48880

In Step VI, add all the digits of a number and multiply that sum with the total number of that number.

Step VI:  20     21       21       42      28     140

Input: 478269    835264     712386    384561      532649        784678

Step I: 579279    825163     813396     374460     522548        885688

Step II: 579360     825227     813477      374509    522612      885752

Step III: 2776       561022     561217     272070    101221      163585

Step IV: 022       26      62       68    2200    6022

Step V: 42     32      32      28     000    3622

Step VI: 12    10   10   20   0     52      

Hence, the correct arrangement is 12  10  10  20  0  52.