Alright, let's work through 3391 times 502 step by step
3391 × 502 = 502 × (3391)
+ 502 × 1 which equals 502
+ 502 × 90 giving us 45180
+ 502 × 300 giving us 150600
+ 502 × 3000 that equals 1506000

= 1702282
