How do you find frequency in this problem?

Question

Alright so my teacher gave me this but i have no idea how to do it.

The problem is : 29979x10^8m/s divided by 4.1017^-7m

Once I get the answer i dont know how to convert it into frequency/hertz Help please !!

Answer 1

Hz = 1/sec

(29979 * 10^8 m/s) / (4.1017 ^ -7 m) = (29979 * 10 m/s * 4.1017^7 / m =

= 5.8555... * 10^16

Answer 2

Frequency is simply 1/time (s)

so

X m/s      divide by Y (m)

gives you an answer of Z (1/s)

therefore Z is the frequency (in Hertz)

its a simple division