Alright, let's work through 4252 times 3535 step by step
4252 × 3535 = 3535 × (4252)
+ 3535 × 2 giving us 7070
+ 3535 × 50 yielding 176750
+ 3535 × 200 yielding 707000
+ 3535 × 4000 that results in 14140000

= 15030820
