No problem, we've got 9129 and 7215 to multiply
9129 × 7215 = 7215 × (9129)
+ 7215 × 9 yielding 64935
+ 7215 × 20 giving us 144300
+ 7215 × 100 producing 721500
+ 7215 × 9000 yielding 64935000

= 65865735
