Alright, let's work through 16057429 times 88978099 step by step
16057429 × 88978099 = 88978099 × (16057429)
+ 88978099 × 9 producing 800802891
+ 88978099 × 20 producing 1779561980
+ 88978099 × 400 giving us 35591239600
+ 88978099 × 7000 that equals 622846693000
+ 88978099 × 50000 resulting in 4448904950000
+ 88978099 × 000000 that is equal 0
+ 88978099 × 6000000 giving us 533868594000000
+ 88978099 × 10000000 that equals 889780990000000

= 1428759507247471
