Alright, let's work through 9272 times 9390 step by step
9272 × 9390 = 9390 × (9272)
+ 9390 × 2 which equals 18780
+ 9390 × 70 that is equal 657300
+ 9390 × 200 that equals 1878000
+ 9390 × 9000 giving us 84510000

= 87064080
