No problem, we've got 6464 and 7790 to multiply
6464 × 7790 = 7790 × (6464)
+ 7790 × 4 giving us 31160
+ 7790 × 60 resulting in 467400
+ 7790 × 400 that equals 3116000
+ 7790 × 6000 what gives us 46740000

= 50354560
