If you want the concentration in grams per liter (g/L), then simple divide the number of grams by the number of liters.
Number of grams =2.07
Number of liters = 1.80
Concentration in grams/L = 2.07/1.80 = 1.15 g/L
So, you would be correct.
Not sure what you mean by gramsLgramsL. There is no such thing in chemistry.
Exactly what are you trying to calculate? Moles/liter? If so, then it is...
2.07 g NaCl x 1 mole NaCl/58.44 g = 0.0354 moles NaCl
0.0354 moles/1.80 liters = 0.0197 moles/L