Alright, let's work through 72769518 times 21361516 step by step
72769518 × 21361516 = 21361516 × (72769518)
+ 21361516 × 8 that results in 170892128
+ 21361516 × 10 producing 213615160
+ 21361516 × 500 that equals 10680758000
+ 21361516 × 9000 that equals 192253644000
+ 21361516 × 60000 what gives us 1281690960000
+ 21361516 × 700000 giving us 14953061200000
+ 21361516 × 2000000 that equals 42723032000000
+ 21361516 × 70000000 producing 1495306120000000

= 1554467223069288
