Alright, let's work through 16121996 times 84022713 step by step
16121996 × 84022713 = 84022713 × (16121996)
+ 84022713 × 6 that equals 504136278
+ 84022713 × 90 giving us 7562044170
+ 84022713 × 900 what gives us 75620441700
+ 84022713 × 1000 that is equal 84022713000
+ 84022713 × 20000 that results in 1680454260000
+ 84022713 × 100000 what gives us 8402271300000
+ 84022713 × 6000000 that is equal 504136278000000
+ 84022713 × 10000000 which equals 840227130000000

= 1354613842895148
