Alright, let's work through 7840 times 1022 step by step
7840 × 1022 = 1022 × (7840)
+ 1022 × 0 producing 0
+ 1022 × 40 which equals 40880
+ 1022 × 800 yielding 817600
+ 1022 × 7000 producing 7154000

= 8012480
