No problem, we've got 2797 and 5421 to multiply
2797 × 5421 = 5421 × (2797)
+ 5421 × 7 giving us 37947
+ 5421 × 90 producing 487890
+ 5421 × 700 producing 3794700
+ 5421 × 2000 giving us 10842000

= 15162537
