How do you write 843902002 in expanded form?

Each of these is correct:

1. (8 x 100000000) + (4 x 10000000) + (3 x 1000000) + (9 x 100000) + (0 x 10000) + (2 x 1000) + (0 x 100) + (0 x 10) + (2 x 1).
2. (8 x 108) + (4 x 107) + (3 x 106) + (9 x 105) + (0 x 104) + (2 x 103) + (0 x 102) + (0 x 101) + (2 x 100).