No problem, we've got 8128 and 6428 to multiply
8128 × 6428 = 6428 × (8128)
+ 6428 × 8 what gives us 51424
+ 6428 × 20 yielding 128560
+ 6428 × 100 yielding 642800
+ 6428 × 8000 that equals 51424000

= 52246784
