No problem, we've got 6422 and 4545 to multiply
6422 × 4545 = 4545 × (6422)
+ 4545 × 2 giving us 9090
+ 4545 × 20 what gives us 90900
+ 4545 × 400 what gives us 1818000
+ 4545 × 6000 that equals 27270000

= 29187990
