You have the following numbers in scientific notation:
7.08 × 10⁶
7.65 × 10¹⁴
To determine which is the higher number, it is enough that you take into account only the exponent of 10. In this case the second number has a greater exponent, which is 14, compared with exponent 6 of the first number.
Then, the higher number is 7.65 × 10¹⁴
