Alright, let's work through 89547768 times 99461313 step by step
89547768 × 99461313 = 99461313 × (89547768)
+ 99461313 × 8 that results in 795690504
+ 99461313 × 60 that results in 5967678780
+ 99461313 × 700 that results in 69622919100
+ 99461313 × 7000 that equals 696229191000
+ 99461313 × 40000 which equals 3978452520000
+ 99461313 × 500000 that results in 49730656500000
+ 99461313 × 9000000 giving us 895151817000000
+ 99461313 × 80000000 that results in 7956905040000000

= 8906538581499384
