No problem, we've got 4225 and 6691 to multiply
4225 × 6691 = 6691 × (4225)
+ 6691 × 5 that equals 33455
+ 6691 × 20 giving us 133820
+ 6691 × 200 that equals 1338200
+ 6691 × 4000 that equals 26764000

= 28269475
