Alright, let's work through 3781 times 156 step by step
3781 × 156 = 156 × (3781)
+ 156 × 1 yielding 156
+ 156 × 80 that equals 12480
+ 156 × 700 yielding 109200
+ 156 × 3000 that results in 468000

= 589836
