Alright, let's work through 72415951 times 38192678 step by step
72415951 × 38192678 = 38192678 × (72415951)
+ 38192678 × 1 that results in 38192678
+ 38192678 × 50 which equals 1909633900
+ 38192678 × 900 giving us 34373410200
+ 38192678 × 5000 giving us 190963390000
+ 38192678 × 10000 that equals 381926780000
+ 38192678 × 400000 what gives us 15277071200000
+ 38192678 × 2000000 yielding 76385356000000
+ 38192678 × 70000000 which equals 2673487460000000

= 2765759098606778
