Alright, let's work through 9900 times 6497 step by step
9900 × 6497 = 6497 × (9900)
+ 6497 × 0 that equals 0
+ 6497 × 00 what gives us 0
+ 6497 × 900 giving us 5847300
+ 6497 × 9000 that is equal 58473000

= 64320300
