Alright, let's work through 84153316 times 82243117 step by step
84153316 × 82243117 = 82243117 × (84153316)
+ 82243117 × 6 that results in 493458702
+ 82243117 × 10 which equals 822431170
+ 82243117 × 300 yielding 24672935100
+ 82243117 × 3000 yielding 246729351000
+ 82243117 × 50000 resulting in 4112155850000
+ 82243117 × 100000 giving us 8224311700000
+ 82243117 × 4000000 that results in 328972468000000
+ 82243117 × 80000000 what gives us 6579449360000000

= 6921031013725972
