How can I crut the frames that I need from the video?

Most likely you need to use special software for this. I'm sure there are such features in professional video editing software, but they are usually quite expensive. I know that on this site https://www.movavi.com/ you can find a free editor for video files. All software on this site can be used for free and each program here has many tools for editing and modifying video, photo and audio files.