How do connect belkin f8e832-KYBD to Samsung TV?

You should not require a driver for this wireless keyboard/mouse combination, but you will need to plug in the USB receiver unit. http://cache-www.belkin.com/support/dl/f8e832-bndl_manual.pdf

it might be dead

check the battery and the reciver is enough close?

You should not need drivers for that as windows 7 should configure it for you. If that is not the case, just go to www.belkin.com and follow their download link. It will step you through the process of finding your driver.

You cannot really purchase parts of a bundled set separately. You are better off scrapping the keyboard and buying a new set

press both the reset button of the wireless mouse and the receiver. also check the batteries

Best if we know which operating system is used.
(First things first .. Batteries)
However, there is an easy way to narrow-down the issue.
I'd try the mouse/keyboard on another PC, and check it's action. If it works there, then perhaps drivers from the manufacturer's website can be installed on the PC referred to.
Here's Belkin's Support site:

Belkin Wireless Keyboard and Optical Mouse Bundle F8E849 BNDL v1 Drivers US

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/keith_f374b1cfd1696a17

sure try getting latest drivers

Have you installed the driver software? Is it connected properly?

Here is a link to the drivers for that keyboard
http://www.belkin.com/support/download/download.asp?download=F8E832-BNDL&lang=1&mode=