Basic Water Dissolving Salt Questions
There are no $\ce{NaCl}$ molecules in the solid salt nor in solution. 

In solid salt, there are $\ce{Na+}$ ions, surrounded by 6 $\ce{Cl-}$ ions, while each $\ce{Cl-}$ is similarly surrounded by 6 $\ce{Na+}$ ions. Here is the Wikipedia picture of the structure.

During the dissolution, water molecules reach for a particular ion, oriented toward it by the opposite partial charge of their electric dipole.

$\ce{Na+}$ ions are torn away and wrapped by $\ce{O}$ side of $\ce{H2O}$ molecules, which have a partial negative charge.

$\ce{Cl-}$ ions are torn away and wrapped by $\ce{2H}$ side of $\ce{H2O}$ molecules, which have a partial positive charge.

Ions end hydrated in solution like $[\ce{Na(OH2)}_n]^+$ and $[\ce{Cl(H2O)}_m]^-$