Divide (6.4×108)(6.4 \times 10^8)(6.4×108) by (1.6×103)(1.6 \times 10^3)(1.6×103) and write in scientific notation.
4.0×1054.0 \times 10^54.0×105
4.0×10114.0 \times 10^{11}4.0×1011
4.0×1044.0 \times 10^44.0×104
4.8×1054.8 \times 10^54.8×105