Hello,
The product you are using is from Dell brand as far as I can see. The best way to do this is to use Dell's Application. Download the Support Assist application and install all your drivers, especially your Realtek driver. If you still want to install manually, I am sharing the support page where your device's drivers are shared below.
https://www.dell.com/support/product-details/tr-tr/product/inspiron-14-5406-2-in-1-laptop/drivers