Alright, let's work through 4639 times 9913 step by step
4639 × 9913 = 9913 × (4639)
+ 9913 × 9 resulting in 89217
+ 9913 × 30 what gives us 297390
+ 9913 × 600 that results in 5947800
+ 9913 × 4000 yielding 39652000

= 45986407
