No problem, we've got 6447 and 9406 to multiply
6447 × 9406 = 9406 × (6447)
+ 9406 × 7 what gives us 65842
+ 9406 × 40 yielding 376240
+ 9406 × 400 that equals 3762400
+ 9406 × 6000 resulting in 56436000

= 60640482
