Alright, let's work through 2507 times 5039 step by step
2507 × 5039 = 5039 × (2507)
+ 5039 × 7 producing 35273
+ 5039 × 00 that results in 0
+ 5039 × 500 yielding 2519500
+ 5039 × 2000 what gives us 10078000

= 12632773
