Alright, let's work through 66877955 times 75215674 step by step
66877955 × 75215674 = 75215674 × (66877955)
+ 75215674 × 5 producing 376078370
+ 75215674 × 50 yielding 3760783700
+ 75215674 × 900 giving us 67694106600
+ 75215674 × 7000 giving us 526509718000
+ 75215674 × 70000 that results in 5265097180000
+ 75215674 × 800000 producing 60172539200000
+ 75215674 × 6000000 that results in 451294044000000
+ 75215674 × 60000000 which equals 4512940440000000

= 5030270461066670
