Alright, let's work through 16200497 times 62504966 step by step
16200497 × 62504966 = 62504966 × (16200497)
+ 62504966 × 7 giving us 437534762
+ 62504966 × 90 that results in 5625446940
+ 62504966 × 400 producing 25001986400
+ 62504966 × 0000 which equals 0
+ 62504966 × 00000 yielding 0
+ 62504966 × 200000 that results in 12500993200000
+ 62504966 × 6000000 that equals 375029796000000
+ 62504966 × 10000000 resulting in 625049660000000

= 1012611514168102
