How do i use noise removal in audacity without actually removing the audio i want?

Find a piece of the recording that *only* has cheering\noise and no music, and select\highlight it. Then go to Effects > Noise Removal, and click "Get Noise Profile." Then click OK. Then select\highlight the entire track, go back to Noise Removal, and adjust the numbers using the Preview. When you're satisfied click OK and wait for it to work. Done.