Alright, let's work through 16493190 times 97720197 step by step
16493190 × 97720197 = 97720197 × (16493190)
+ 97720197 × 0 what gives us 0
+ 97720197 × 90 producing 8794817730
+ 97720197 × 100 that equals 9772019700
+ 97720197 × 3000 giving us 293160591000
+ 97720197 × 90000 resulting in 8794817730000
+ 97720197 × 400000 that results in 39088078800000
+ 97720197 × 6000000 giving us 586321182000000
+ 97720197 × 10000000 which equals 977201970000000

= 1611717775958430
