Let's calculate 7882 x 1784
7882 × 1784 = 1784 × (7882)
+ 1784 × 2 resulting in 3568
+ 1784 × 80 giving us 142720
+ 1784 × 800 what gives us 1427200
+ 1784 × 7000 that results in 12488000

= 14061488
