Alright, let's work through 82368379 times 84072901 step by step
82368379 × 84072901 = 84072901 × (82368379)
+ 84072901 × 9 yielding 756656109
+ 84072901 × 70 which equals 5885103070
+ 84072901 × 300 that results in 25221870300
+ 84072901 × 8000 what gives us 672583208000
+ 84072901 × 60000 yielding 5044374060000
+ 84072901 × 300000 yielding 25221870300000
+ 84072901 × 2000000 yielding 168145802000000
+ 84072901 × 80000000 giving us 6725832080000000

= 6924948573197479
