No problem, we've got 8421 and 3948 to multiply
8421 × 3948 = 3948 × (8421)
+ 3948 × 1 that equals 3948
+ 3948 × 20 that is equal 78960
+ 3948 × 400 that is equal 1579200
+ 3948 × 8000 that results in 31584000

= 33246108
