Alright, let's work through 9172 times 1659 step by step
9172 × 1659 = 1659 × (9172)
+ 1659 × 2 that equals 3318
+ 1659 × 70 what gives us 116130
+ 1659 × 100 what gives us 165900
+ 1659 × 9000 what gives us 14931000

= 15216348
