No problem, we've got 2505 and 3981 to multiply
2505 × 3981 = 3981 × (2505)
+ 3981 × 5 producing 19905
+ 3981 × 00 that results in 0
+ 3981 × 500 resulting in 1990500
+ 3981 × 2000 that equals 7962000

= 9972405
