No problem, we've got 3930 and 7146 to multiply
3930 × 7146 = 7146 × (3930)
+ 7146 × 0 yielding 0
+ 7146 × 30 that equals 214380
+ 7146 × 900 producing 6431400
+ 7146 × 3000 what gives us 21438000

= 28083780
