Alright, let's work through 84476819 times 97820006 step by step
84476819 × 97820006 = 97820006 × (84476819)
+ 97820006 × 9 that is equal 880380054
+ 97820006 × 10 which equals 978200060
+ 97820006 × 800 which equals 78256004800
+ 97820006 × 6000 which equals 586920036000
+ 97820006 × 70000 which equals 6847400420000
+ 97820006 × 400000 what gives us 39128002400000
+ 97820006 × 4000000 giving us 391280024000000
+ 97820006 × 80000000 what gives us 7825600480000000

= 8263522941440914
