Alright, let's work through 5157 times 7021 step by step
5157 × 7021 = 7021 × (5157)
+ 7021 × 7 giving us 49147
+ 7021 × 50 yielding 351050
+ 7021 × 100 that equals 702100
+ 7021 × 5000 producing 35105000

= 36207297
