Alright, let's work through 1887 times 907 step by step
1887 × 907 = 907 × (1887)
+ 907 × 7 producing 6349
+ 907 × 80 that is equal 72560
+ 907 × 800 yielding 725600
+ 907 × 1000 what gives us 907000

= 1711509
