No problem, we've got 6401 and 4025 to multiply
6401 × 4025 = 4025 × (6401)
+ 4025 × 1 which equals 4025
+ 4025 × 00 producing 0
+ 4025 × 400 producing 1610000
+ 4025 × 6000 which equals 24150000

= 25764025
