Question 1099278
 Use the ln key to express each number as a power. Then use the rules of exponents to find the answer. 
(0.000612)(576)/(0.0512x10^-14) 
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If "each number" means the 3 numbers shown:
You can find the ln of each, then add the 2 in the NUM and subtract the one for the DEN.
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ln(0.000612) = -7.398778
ln(576) = 6.356107
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Add those.
ln(0.0512e-14) = -35.208207
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Subtract that from the sum of the NUM
--> 34.1655364
Then e^34.1655364 --> 688,500,000,000,000
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It's not a good example, IMO.