Alright, let's work through 2731 times 1587 step by step
2731 × 1587 = 1587 × (2731)
+ 1587 × 1 giving us 1587
+ 1587 × 30 what gives us 47610
+ 1587 × 700 which equals 1110900
+ 1587 × 2000 yielding 3174000

= 4334097
