No problem, we've got 4494 and 4586 to multiply
4494 × 4586 = 4586 × (4494)
+ 4586 × 4 what gives us 18344
+ 4586 × 90 producing 412740
+ 4586 × 400 giving us 1834400
+ 4586 × 4000 producing 18344000

= 20609484
