Alright, let's work through 5452 times 3776 step by step
5452 × 3776 = 3776 × (5452)
+ 3776 × 2 that is equal 7552
+ 3776 × 50 resulting in 188800
+ 3776 × 400 yielding 1510400
+ 3776 × 5000 giving us 18880000

= 20586752
