No problem, we've got 4423 and 4902 to multiply
4423 × 4902 = 4902 × (4423)
+ 4902 × 3 producing 14706
+ 4902 × 20 giving us 98040
+ 4902 × 400 what gives us 1960800
+ 4902 × 4000 that results in 19608000

= 21681546
