Alright, let's work through 89590001 times 84665379 step by step
89590001 × 84665379 = 84665379 × (89590001)
+ 84665379 × 1 that equals 84665379
+ 84665379 × 00 giving us 0
+ 84665379 × 000 that equals 0
+ 84665379 × 0000 yielding 0
+ 84665379 × 90000 yielding 7619884110000
+ 84665379 × 500000 yielding 42332689500000
+ 84665379 × 9000000 resulting in 761988411000000
+ 84665379 × 80000000 that equals 6773230320000000

= 7585171389275379
