Alright, let's work through 99180175 times 84624513 step by step
99180175 × 84624513 = 84624513 × (99180175)
+ 84624513 × 5 resulting in 423122565
+ 84624513 × 70 that equals 5923715910
+ 84624513 × 100 yielding 8462451300
+ 84624513 × 0000 resulting in 0
+ 84624513 × 80000 producing 6769961040000
+ 84624513 × 100000 producing 8462451300000
+ 84624513 × 9000000 which equals 761620617000000
+ 84624513 × 90000000 which equals 7616206170000000

= 8393074008629775
