No problem, we've got 5157 and 3949 to multiply
5157 × 3949 = 3949 × (5157)
+ 3949 × 7 which equals 27643
+ 3949 × 50 resulting in 197450
+ 3949 × 100 what gives us 394900
+ 3949 × 5000 that equals 19745000

= 20364993
