Alright, let's work through 71378456 times 22155938 step by step
71378456 × 22155938 = 22155938 × (71378456)
+ 22155938 × 6 that equals 132935628
+ 22155938 × 50 giving us 1107796900
+ 22155938 × 400 that equals 8862375200
+ 22155938 × 8000 that is equal 177247504000
+ 22155938 × 70000 that equals 1550915660000
+ 22155938 × 300000 yielding 6646781400000
+ 22155938 × 1000000 that equals 22155938000000
+ 22155938 × 70000000 giving us 1550915660000000

= 1581456645671728
