No problem, we've got 3792 and 5643 to multiply
3792 × 5643 = 5643 × (3792)
+ 5643 × 2 that results in 11286
+ 5643 × 90 that is equal 507870
+ 5643 × 700 that is equal 3950100
+ 5643 × 3000 that is equal 16929000

= 21398256
