Alright, let's work through 78618097 times 84072733 step by step
78618097 × 84072733 = 84072733 × (78618097)
+ 84072733 × 7 that is equal 588509131
+ 84072733 × 90 resulting in 7566545970
+ 84072733 × 000 producing 0
+ 84072733 × 8000 giving us 672581864000
+ 84072733 × 10000 giving us 840727330000
+ 84072733 × 600000 that equals 50443639800000
+ 84072733 × 8000000 that results in 672581864000000
+ 84072733 × 70000000 what gives us 5885091310000000

= 6609638278049101
