3 x 106 * 4 x 106 =12 x 1012 or 1.2 x 1013.
or 12 trillion
Do not be afraid to use the calculator on this website. If you don't know how much a million is, or anything for that matter, look it up on the internet, that shouldn't be too dificult since you found us. A valuable skill that you need to learn is too try and help yourself before you ask others for help. If you can't do that, you will not go far in life.