No problem, we've got 5525 and 641 to multiply
5525 × 641 = 641 × (5525)
+ 641 × 5 which equals 3205
+ 641 × 20 giving us 12820
+ 641 × 500 that results in 320500
+ 641 × 5000 that equals 3205000

= 3541525
