No problem, we've got 6407 and 6513 to multiply
6407 × 6513 = 6513 × (6407)
+ 6513 × 7 that is equal 45591
+ 6513 × 00 what gives us 0
+ 6513 × 400 that results in 2605200
+ 6513 × 6000 producing 39078000

= 41728791
