No problem, we've got 4252 and 9987 to multiply
4252 × 9987 = 9987 × (4252)
+ 9987 × 2 what gives us 19974
+ 9987 × 50 that results in 499350
+ 9987 × 200 that equals 1997400
+ 9987 × 4000 yielding 39948000

= 42464724
