Can someone explain converting math problems in detail

Convert 750 mL to pints and round answer to the third significant digit. Teachers example: (mL to L). 750 mL(1L / 1000 mL) = 0.75 L.

1 Milliliter = 0.00211337642 Pint [Fluid, US] so:
750mL= 750mL(0.00211337642 Pint/1mL) =

1.31