No problem, we've got 6447 and 2445 to multiply
6447 × 2445 = 2445 × (6447)
+ 2445 × 7 giving us 17115
+ 2445 × 40 yielding 97800
+ 2445 × 400 yielding 978000
+ 2445 × 6000 producing 14670000

= 15762915
