"I am Ivan Ivanovich Chernov."
Translation:Я Иван Иванович Чернов.
Here in Kazakhstan (a dual-language country, Kazakh and Russian), I live in a mostly Russian-speaking area (Many of the locals don't know Kazakh any more than a typical American knows Spanish), people introduce themselves and are introduced with only their given names. This is true in work, business and social settings. At school, the only times kids normally give their family name is when there are more than one child with the same. first name. I have never heard any-one use a patronymic. Of course, at government offices and other places with forms to fill out, family names are required along with given names.