No problem, we've got 2923 and 6443 to multiply
2923 × 6443 = 6443 × (2923)
+ 6443 × 3 what gives us 19329
+ 6443 × 20 that equals 128860
+ 6443 × 900 what gives us 5798700
+ 6443 × 2000 resulting in 12886000

= 18832889
