Alright, let's work through 1780 times 3197 step by step
1780 × 3197 = 3197 × (1780)
+ 3197 × 0 producing 0
+ 3197 × 80 which equals 255760
+ 3197 × 700 giving us 2237900
+ 3197 × 1000 producing 3197000

= 5690660
