Alright, let's work through 72991389 times 75265696 step by step
72991389 × 75265696 = 75265696 × (72991389)
+ 75265696 × 9 which equals 677391264
+ 75265696 × 80 that is equal 6021255680
+ 75265696 × 300 that equals 22579708800
+ 75265696 × 1000 that equals 75265696000
+ 75265696 × 90000 which equals 6773912640000
+ 75265696 × 900000 what gives us 67739126400000
+ 75265696 × 2000000 that results in 150531392000000
+ 75265696 × 70000000 that results in 5268598720000000

= 5493747695091744
