Complex sentence: Lavrov's first business was the first Internet-related magazine about the Internet in Russia called "Planeta Internet" that was later sold to Smolensky Bank that paid about 2 million dollars to Lavrov when he was just 16 years old.
Split into simpler sentences: Lavrov's first business was the first Internet-related magazine in Russia called "Planeta Internet". It was later sold to Smolensky Bank who paid about 2 million dollars to Lavrov when he was just 16 years old.