And does anybody do it today without software?

I know it might sound like a weird question but I’m currently shopping for a new payroll service and I can’t stop thinking about it. I have absolutely no idea how or what to do when it comes to the mechanics of taking out FICA, taxes, etc… sending those payments to the irs just seems like a huge pain.

Obviously bigger companies can hire someone full time to handle payroll but how did the little guys do it?