No problem, we've got 4939 and 8405 to multiply
4939 × 8405 = 8405 × (4939)
+ 8405 × 9 that is equal 75645
+ 8405 × 30 giving us 252150
+ 8405 × 900 yielding 7564500
+ 8405 × 4000 that results in 33620000

= 41512295
