The Dutch striker has not scored since joining the club from Ajax last month.
“I am very happy to be playing for Real Madrid because it is a great club, the biggest in the world,” he told the club’s official website.
“My debut was good although I was not able to score unfortunately, but I had a great chance. I have to play more and continue fighting because I know the goals will come.”
“I hope we win our seventh straight game as it will help us a lot because it will keep our confidence high,” he continued.
“We also need to continue pressuring Barcelona. They have a substantial lead on us, but we need to continue winning to not lose sight.
“We know that Racing are a great team who play with a good system. I am familiar with it and with some of their players. They now have [Nikola] Zigic, who came back from Valencia.
“I have seen some of their matches and know they did a good job against Barcelona. We’ll have to be mindful.”