Alright, let's work through 1781 times 7732 step by step
1781 × 7732 = 7732 × (1781)
+ 7732 × 1 giving us 7732
+ 7732 × 80 yielding 618560
+ 7732 × 700 what gives us 5412400
+ 7732 × 1000 yielding 7732000

= 13770692
