No problem, we've got 4025 and 9926 to multiply
4025 × 9926 = 9926 × (4025)
+ 9926 × 5 what gives us 49630
+ 9926 × 20 that equals 198520
+ 9926 × 000 producing 0
+ 9926 × 4000 that equals 39704000

= 39952150
