Alright, let's work through 85366096 times 99638545 step by step
85366096 × 99638545 = 99638545 × (85366096)
+ 99638545 × 6 that results in 597831270
+ 99638545 × 90 that is equal 8967469050
+ 99638545 × 000 yielding 0
+ 99638545 × 6000 which equals 597831270000
+ 99638545 × 60000 that equals 5978312700000
+ 99638545 × 300000 yielding 29891563500000
+ 99638545 × 5000000 that results in 498192725000000
+ 99638545 × 80000000 giving us 7971083600000000

= 8505753597770320
