Alright, let's work through 72413758 times 61792891 step by step
72413758 × 61792891 = 61792891 × (72413758)
+ 61792891 × 8 giving us 494343128
+ 61792891 × 50 which equals 3089644550
+ 61792891 × 700 resulting in 43255023700
+ 61792891 × 3000 that is equal 185378673000
+ 61792891 × 10000 producing 617928910000
+ 61792891 × 400000 giving us 24717156400000
+ 61792891 × 2000000 that results in 123585782000000
+ 61792891 × 70000000 what gives us 4325502370000000

= 4474655454994378
