To divide \(3.3 \times 10^4\) by \(5.5 \times 10^7\), we can perform the division step by step:
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Divide the coefficients (3.3 and 5.5): \[ \frac{3.3}{5.5} = 0.6 \]
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Subtract the exponents of 10: \[ 10^{4 - 7} = 10^{-3} \]
Putting it all together: \[ \frac{3.3 \times 10^4}{5.5 \times 10^7} = 0.6 \times 10^{-3} \]
We can convert \(0.6\) into scientific notation: \[ 0.6 = 6.0 \times 10^{-1} \]
Thus: \[ 0.6 \times 10^{-3} = 6.0 \times 10^{-1} \times 10^{-3} = 6.0 \times 10^{-4} \]
Therefore, the answer is: \[ \boxed{6 \times 10^{-4}} \]