Alright, let's work through 84675971 times 33978414 step by step
84675971 × 33978414 = 33978414 × (84675971)
+ 33978414 × 1 which equals 33978414
+ 33978414 × 70 what gives us 2378488980
+ 33978414 × 900 that is equal 30580572600
+ 33978414 × 5000 producing 169892070000
+ 33978414 × 70000 what gives us 2378488980000
+ 33978414 × 600000 which equals 20387048400000
+ 33978414 × 4000000 resulting in 135913656000000
+ 33978414 × 80000000 which equals 2718273120000000

= 2877155198489994
