Complex sentence: Malbim was born in Volochysk, Volhynia and educated in Hebrew and the Talmud by his father and, after being orphaned as a child, by his stepfather, Rabbi Leib of Volochisk.
Split into simpler sentences: Malbim was born in Volochysk, Volhynia and educated in Hebrew and the Talmud by his father. After being orphaned as a child, he was cared for and educated by his stepfather, Rabbi Leib of Volochisk.