Alright, let's work through 5397325 times 780872 step by step
5397325 × 780872 = 780872 × (5397325)
+ 780872 × 5 producing 3904360
+ 780872 × 20 that is equal 15617440
+ 780872 × 300 yielding 234261600
+ 780872 × 7000 giving us 5466104000
+ 780872 × 90000 yielding 70278480000
+ 780872 × 300000 resulting in 234261600000
+ 780872 × 5000000 resulting in 3904360000000

= 4214619967400
