Alright, let's work through 75639222 times 72166527 step by step
75639222 × 72166527 = 72166527 × (75639222)
+ 72166527 × 2 which equals 144333054
+ 72166527 × 20 yielding 1443330540
+ 72166527 × 200 producing 14433305400
+ 72166527 × 9000 producing 649498743000
+ 72166527 × 30000 yielding 2164995810000
+ 72166527 × 600000 that is equal 43299916200000
+ 72166527 × 5000000 yielding 360832635000000
+ 72166527 × 70000000 resulting in 5051656890000000

= 5458619956721994
