Alright, let's work through 5257 times 7139 step by step
5257 × 7139 = 7139 × (5257)
+ 7139 × 7 resulting in 49973
+ 7139 × 50 that is equal 356950
+ 7139 × 200 yielding 1427800
+ 7139 × 5000 that results in 35695000

= 37529723
