No problem, we've got 1721 and 6397 to multiply
1721 × 6397 = 6397 × (1721)
+ 6397 × 1 that results in 6397
+ 6397 × 20 resulting in 127940
+ 6397 × 700 that results in 4477900
+ 6397 × 1000 that equals 6397000

= 11009237
