Alright, let's work through 66919628 times 62427663 step by step
66919628 × 62427663 = 62427663 × (66919628)
+ 62427663 × 8 producing 499421304
+ 62427663 × 20 yielding 1248553260
+ 62427663 × 600 what gives us 37456597800
+ 62427663 × 9000 which equals 561848967000
+ 62427663 × 10000 producing 624276630000
+ 62427663 × 900000 resulting in 56184896700000
+ 62427663 × 6000000 that results in 374565978000000
+ 62427663 × 60000000 that equals 3745659780000000

= 4177635984869364
