Samsung just had a great quarter, and it's all because people are snapping up Galaxy S7s. The Korean chaebol has revealed that it's expecting its second quarter operating profit to reach 8.1 trillion won ($7 billion), thanks to its smartphone business. That might be far from the 8.84 trillion won ($7.6 billion) operating profit it posted in January 2013, but it's still around 17 percent higher than last year's. It's also the highest in two years since it notched a profit of 8.5 trillion won ($7.4 billion) back in the first quarter of 2014. The company expects its revenue to be up by three percent, from 48.5 trillion won ($42 billion) to 50 trillion ($43 billion), as well.