No problem, we've got 5725 and 1521 to multiply
5725 × 1521 = 1521 × (5725)
+ 1521 × 5 that equals 7605
+ 1521 × 20 giving us 30420
+ 1521 × 700 what gives us 1064700
+ 1521 × 5000 yielding 7605000

= 8707725
