Write down the number of Megahertz you want to convert.
Multiply the number you wrote down in step one by one million (1,000,000).
Change the units on the product found in step two to Hertz.
Go to an online unit conversion site (see References for link).
Enter the number of Megahertz you want to convert in the "MHz" box.
Read the converted number of Hertz in the "Hz" box.