No problem, we've got 5721 and 5431 to multiply
5721 × 5431 = 5431 × (5721)
+ 5431 × 1 that is equal 5431
+ 5431 × 20 that is equal 108620
+ 5431 × 700 what gives us 3801700
+ 5431 × 5000 which equals 27155000

= 31070751
