Could someone please explain to me how to do this problem, and also what the answer is? I don't understand !!

(8x10^4) x (4.43 x 10^9). THANKS SO MUCH!

Online, "*" is used to indicate multiplication, since "x" is often used as an unknown.

(8*10^4)(4.43*10^9) = (8*4.43)(10^13)