Alright, let's work through 3545 times 77 step by step
3545 × 77 = 77 × (3545)
+ 77 × 5 that results in 385
+ 77 × 40 that equals 3080
+ 77 × 500 what gives us 38500
+ 77 × 3000 that results in 231000

= 272965
