How to put this into Standard Form?

I know how to put number in and out of standard form, I did it like last year. But I have no idea how to put is, as part of an equation, into a calculator?! Lets say that x'y represents x to the power of y. For example, "The speed of all electromagnetic waves in a vacuum is 3.0 x 10'8 m/s. The... show more I know how to put number in and out of standard form, I did it like last year. But I have no idea how to put is, as part of an equation, into a calculator?!

Lets say that x'y represents x to the power of y.
For example,
"The speed of all electromagnetic waves in a vacuum is 3.0 x 10'8 m/s.
The wavelength of the microwaves used by mobile phones is 34cm.
Calculate the frequency of these microwaves."

I get that it is going to be 3.0 x 10'8 divided by 34.
What I don't get is how to put it into a calculator? Like, why would it not just times 3.0 by then then divide that answer by 34? Surely that's not right, because in trying that I got 8,823529.412

Or is that right?
Could someone dumb it down for me please?
Many thanks for all of you who give answers!
2 answers 2