No problem, we've got 6463 and 1721 to multiply
6463 × 1721 = 1721 × (6463)
+ 1721 × 3 giving us 5163
+ 1721 × 60 that equals 103260
+ 1721 × 400 giving us 688400
+ 1721 × 6000 which equals 10326000

= 11122823
