Alright, let's work through 21599542 times 74232156 step by step
21599542 × 74232156 = 74232156 × (21599542)
+ 74232156 × 2 that equals 148464312
+ 74232156 × 40 resulting in 2969286240
+ 74232156 × 500 giving us 37116078000
+ 74232156 × 9000 that results in 668089404000
+ 74232156 × 90000 giving us 6680894040000
+ 74232156 × 500000 what gives us 37116078000000
+ 74232156 × 1000000 producing 74232156000000
+ 74232156 × 20000000 that results in 1484643120000000

= 1603380571272552
