No problem, we've got 6543 and 6863 to multiply
6543 × 6863 = 6863 × (6543)
+ 6863 × 3 which equals 20589
+ 6863 × 40 that equals 274520
+ 6863 × 500 yielding 3431500
+ 6863 × 6000 that is equal 41178000

= 44904609
