Alright, let's work through 75128006 times 9150954 step by step
75128006 × 9150954 = 9150954 × (75128006)
+ 9150954 × 6 producing 54905724
+ 9150954 × 00 producing 0
+ 9150954 × 000 producing 0
+ 9150954 × 8000 that equals 73207632000
+ 9150954 × 20000 resulting in 183019080000
+ 9150954 × 100000 resulting in 915095400000
+ 9150954 × 5000000 what gives us 45754770000000
+ 9150954 × 70000000 that results in 640566780000000

= 687492927017724
