Alright, let's work through 85473468 times 7552064 step by step
85473468 × 7552064 = 7552064 × (85473468)
+ 7552064 × 8 what gives us 60416512
+ 7552064 × 60 yielding 453123840
+ 7552064 × 400 yielding 3020825600
+ 7552064 × 3000 producing 22656192000
+ 7552064 × 70000 that equals 528644480000
+ 7552064 × 400000 what gives us 3020825600000
+ 7552064 × 5000000 producing 37760320000000
+ 7552064 × 80000000 that equals 604165120000000

= 645501100637952
