Alright, let's work through 71279919 times 93133315 step by step
71279919 × 93133315 = 93133315 × (71279919)
+ 93133315 × 9 what gives us 838199835
+ 93133315 × 10 what gives us 931333150
+ 93133315 × 900 yielding 83819983500
+ 93133315 × 9000 yielding 838199835000
+ 93133315 × 70000 yielding 6519332050000
+ 93133315 × 200000 yielding 18626663000000
+ 93133315 × 1000000 that equals 93133315000000
+ 93133315 × 70000000 yielding 6519332050000000

= 6638535149401485
