No problem, we've got 4585 and 3924 to multiply
4585 × 3924 = 3924 × (4585)
+ 3924 × 5 that equals 19620
+ 3924 × 80 giving us 313920
+ 3924 × 500 that equals 1962000
+ 3924 × 4000 what gives us 15696000

= 17991540
