No problem, we've got 84728764 and 99424756 to multiply
84728764 × 99424756 = 99424756 × (84728764)
+ 99424756 × 4 producing 397699024
+ 99424756 × 60 which equals 5965485360
+ 99424756 × 700 producing 69597329200
+ 99424756 × 8000 that equals 795398048000
+ 99424756 × 20000 that is equal 1988495120000
+ 99424756 × 700000 what gives us 69597329200000
+ 99424756 × 4000000 resulting in 397699024000000
+ 99424756 × 80000000 yielding 7953980480000000

= 8424136686881584
