Alright, let's work through 4513 times 4123 step by step
4513 × 4123 = 4123 × (4513)
+ 4123 × 3 what gives us 12369
+ 4123 × 10 that is equal 41230
+ 4123 × 500 resulting in 2061500
+ 4123 × 4000 what gives us 16492000

= 18607099
