Alright, let's work through 7987158 times 23721552 step by step
7987158 × 23721552 = 23721552 × (7987158)
+ 23721552 × 8 resulting in 189772416
+ 23721552 × 50 which equals 1186077600
+ 23721552 × 100 resulting in 2372155200
+ 23721552 × 7000 what gives us 166050864000
+ 23721552 × 80000 that equals 1897724160000
+ 23721552 × 900000 yielding 21349396800000
+ 23721552 × 7000000 yielding 166050864000000

= 189467783829216
