Alright, let's work through 7841 times 3881 step by step
7841 × 3881 = 3881 × (7841)
+ 3881 × 1 resulting in 3881
+ 3881 × 40 that is equal 155240
+ 3881 × 800 that is equal 3104800
+ 3881 × 7000 producing 27167000

= 30430921
