Alright, let's work through 29724899 times 66073961 step by step
29724899 × 66073961 = 66073961 × (29724899)
+ 66073961 × 9 that is equal 594665649
+ 66073961 × 90 producing 5946656490
+ 66073961 × 800 which equals 52859168800
+ 66073961 × 4000 which equals 264295844000
+ 66073961 × 20000 that is equal 1321479220000
+ 66073961 × 700000 yielding 46251772700000
+ 66073961 × 9000000 yielding 594665649000000
+ 66073961 × 20000000 giving us 1321479220000000

= 1964041817254939
