The Jews were not pacified by His answer, but they tried again to stone Him. If they would have understood His statements to mean that He was not proclaiming His deity, they would have left Him alone.
The comparison that Jesus is making is between the bible stating that the Christ was God (Isaiah 9:6) and the saying that rulers were gods (this refers to having divine authority - not deity). Jesus accepted their position and authority, because of the infallibility of the word, and they should have done the same with Him.
The bible prophesied His coming and the works that He would accomplish; and He fulfilled these prophecies as no one else could. His works proved He was the Messiah prophesied through the Word.
Jesus had already manifested supernatural power by His ability to walk through the midst of those who were trying to kill him and He eventually does the same thing here. He refers back to Psalm 82:6. In this passage, God was speaking to the rulers of His covenant people, the Jews, and He called them gods.
Jesus was saying, "If those in authority were called gods, how can you fault me for claiming to be the Son of God when I have fulfilled so many scriptures?"