Alright, let's work through 3502 times 5026 step by step
3502 × 5026 = 5026 × (3502)
+ 5026 × 2 which equals 10052
+ 5026 × 00 what gives us 0
+ 5026 × 500 giving us 2513000
+ 5026 × 3000 producing 15078000

= 17601052
