Alright, let's work through 99371072 times 65278299 step by step
99371072 × 65278299 = 65278299 × (99371072)
+ 65278299 × 2 which equals 130556598
+ 65278299 × 70 which equals 4569480930
+ 65278299 × 000 which equals 0
+ 65278299 × 1000 yielding 65278299000
+ 65278299 × 70000 which equals 4569480930000
+ 65278299 × 300000 yielding 19583489700000
+ 65278299 × 9000000 giving us 587504691000000
+ 65278299 × 90000000 that is equal 5875046910000000

= 6486774549966528
