The 25-year-old, who joined from Anzhi Makhachkala for £30m over the summer, netted late on for the Blues as they earned a 3-1 victory at Carrow Road.
"He's settling in the team," Cech told the club's official website. "It's not always easy when you come to the Premier League, you need a little bit of time to learn the language.
"He's getting games under his belt. He scored a fantastic goal which will give him a lot of confidence and I hope that it will help him settle in better."
Chelsea are back in Premier League action on October 19 when they welcome Cardiff City to Stamford Bridge.