Atomix no longer hosts 7.0.4 on their main site, but they have a legacy archive. You can download the installer for free. However, without a Pro Infinity license key, it will revert to "Home Free" mode after 30 days.
The search for "virtual dj 7.0 4 free download" is a dangerous throwback to an earlier era of DJing. While the software itself was a masterpiece of its time, the free version you find online today is almost certainly a virus trap. virtual dj 7.0 4 free download
Instead, here’s a safe and practical guide: Atomix no longer hosts 7