the first digit of two different numbers is in a hundred million place. both numbers contain the same digits. can you determine the greater of the two numbers

Yes. Since the first digit is the same look at the next digit, the second. Determine which of the second digits are larger. Although they use all the same digits, that does not mean that the digits are in the same order. The only digit that is clarified that is in the same spot is the first one, so you look at the next one