ᴛʜᴇ ᴀɴsᴡᴇʀ ɪs 5.0 x 10^6
Separating the fraction into 2 fractions:
1.6 10^14
—— x ——
3.2 10^7
Dividing the numbers, and dividing the terms with the same base by subtracting their exponents:
0.5 x 10^14-7
Lastly, just subtract the exponents:
0.5 x 10^7
In scientific notation it would equivalent to:
0.5 x 10^6