No problem, we've got 8511 and 8428 to multiply
8511 × 8428 = 8428 × (8511)
+ 8428 × 1 giving us 8428
+ 8428 × 10 giving us 84280
+ 8428 × 500 yielding 4214000
+ 8428 × 8000 what gives us 67424000

= 71730708
