No problem, we've got 4549 and 6440 to multiply
4549 × 6440 = 6440 × (4549)
+ 6440 × 9 that is equal 57960
+ 6440 × 40 that is equal 257600
+ 6440 × 500 that is equal 3220000
+ 6440 × 4000 which equals 25760000

= 29295560
