No problem, we've got 5553 and 3873 to multiply
5553 × 3873 = 3873 × (5553)
+ 3873 × 3 giving us 11619
+ 3873 × 50 that is equal 193650
+ 3873 × 500 that is equal 1936500
+ 3873 × 5000 giving us 19365000

= 21506769
