Alright, let's work through 3882 times 5419 step by step
3882 × 5419 = 5419 × (3882)
+ 5419 × 2 resulting in 10838
+ 5419 × 80 which equals 433520
+ 5419 × 800 producing 4335200
+ 5419 × 3000 giving us 16257000

= 21036558
