No problem, we've got 7884 and 6821 to multiply
7884 × 6821 = 6821 × (7884)
+ 6821 × 4 giving us 27284
+ 6821 × 80 producing 545680
+ 6821 × 800 that is equal 5456800
+ 6821 × 7000 giving us 47747000

= 53776764
