This Atmel fuse confuses me a lot so I have figure out an easy way of finding fuses for such controllers basically two methods that I have used once are:
Method 1:(explaining specific for this controller (
Add this to your Arduino board manager it is from MCU dude they have different varients also for other controllers check here.
Now select your controller and your clock frequency and all parameters as you like after that use USBASP or Arduino as isp for burning bootloader inside your controller, in this case, we will burn the bootloader into Atmega32A.
After the successful burning bootloader, you will need an AVRdudess software by using this software you have to just read the fuse of our MCU so we will get the fuse setting done by MCUdude from Arduino and after that, you can directly set those fuse setting and it will work fine.
just use online calculators such as here for finding fuse settings.