We're going to solve 63996669 multiplied by 66687903
63996669 × 66687903 = 66687903 × (63996669)
+ 66687903 × 9 resulting in 600191127
+ 66687903 × 60 giving us 4001274180
+ 66687903 × 600 giving us 40012741800
+ 66687903 × 6000 producing 400127418000
+ 66687903 × 90000 that is equal 6001911270000
+ 66687903 × 900000 producing 60019112700000
+ 66687903 × 3000000 what gives us 200063709000000
+ 66687903 × 60000000 that is equal 4001274180000000

= 4267803654595107
