Alright, let's work through 8385 times 65151331 step by step
8385 × 65151331 = 65151331 × (8385)
+ 65151331 × 5 giving us 325756655
+ 65151331 × 80 giving us 5212106480
+ 65151331 × 300 that is equal 19545399300
+ 65151331 × 8000 that equals 521210648000

= 546293910435
