Alright, let's work through 72145834 times 17533978 step by step
72145834 × 17533978 = 17533978 × (72145834)
+ 17533978 × 4 what gives us 70135912
+ 17533978 × 30 producing 526019340
+ 17533978 × 800 what gives us 14027182400
+ 17533978 × 5000 giving us 87669890000
+ 17533978 × 40000 which equals 701359120000
+ 17533978 × 100000 that results in 1753397800000
+ 17533978 × 2000000 producing 35067956000000
+ 17533978 × 70000000 what gives us 1227378460000000

= 1265003466147652
