Alright, let's work through 63678373 times 70249608 step by step
63678373 × 70249608 = 70249608 × (63678373)
+ 70249608 × 3 that results in 210748824
+ 70249608 × 70 which equals 4917472560
+ 70249608 × 300 that equals 21074882400
+ 70249608 × 8000 producing 561996864000
+ 70249608 × 70000 giving us 4917472560000
+ 70249608 × 600000 what gives us 42149764800000
+ 70249608 × 3000000 that is equal 210748824000000
+ 70249608 × 60000000 resulting in 4214976480000000

= 4473380741327784
