No problem, we've got 8456 and 8002 to multiply
8456 × 8002 = 8002 × (8456)
+ 8002 × 6 what gives us 48012
+ 8002 × 50 what gives us 400100
+ 8002 × 400 producing 3200800
+ 8002 × 8000 producing 64016000

= 67664912
