Find the value of expression

MATHEMATICS · Subjective · AoPS · Mathematics · Special Functions · Special Functions

Problem

\left[ \frac{18}{35} \right] + \left[ \frac{18(2)}{35} \right] + \left[ \frac{18(3)}{35} \right] + \dots + \left[ \frac{18(33)}{35} \right] + \left[ \frac{18(34)}{35} \right]

. { [y] denotes the greatest integer function less than or equal to y. }