Alright, let's work through 1787 times 2156 step by step
1787 × 2156 = 2156 × (1787)
+ 2156 × 7 that equals 15092
+ 2156 × 80 resulting in 172480
+ 2156 × 700 producing 1509200
+ 2156 × 1000 producing 2156000

= 3852772
