Alright, let's work through 7894 times 321 step by step
7894 × 321 = 321 × (7894)
+ 321 × 4 giving us 1284
+ 321 × 90 producing 28890
+ 321 × 800 which equals 256800
+ 321 × 7000 that is equal 2247000

= 2533974
