the business does not pay any kind of SS or payroll taxes when you are a sole proprietor
you should download the instructions and forms for the 1040-ES from the IRS web site. That is quarterly estimated taxes, and it has a worksheet you fill out, those quarterly tax payments will include SS.
When you file annual taxes, the tax form will show the total SS amount due, and it will also credit back half of it. The annual tax form 1040 & schedule C, will post to your SS earnings record with the SS administration