No problem, we've got 3645 and 5887 to multiply
3645 × 5887 = 5887 × (3645)
+ 5887 × 5 what gives us 29435
+ 5887 × 40 producing 235480
+ 5887 × 600 that equals 3532200
+ 5887 × 3000 giving us 17661000

= 21458115
