No problem, we've got 5251 and 7815 to multiply
5251 × 7815 = 7815 × (5251)
+ 7815 × 1 which equals 7815
+ 7815 × 50 resulting in 390750
+ 7815 × 200 which equals 1563000
+ 7815 × 5000 yielding 39075000

= 41036565
