Alright, let's work through 8555 times 657 step by step
8555 × 657 = 657 × (8555)
+ 657 × 5 resulting in 3285
+ 657 × 50 yielding 32850
+ 657 × 500 what gives us 328500
+ 657 × 8000 that equals 5256000

= 5620635
