Alright, let's work through 2945 times 6555 step by step
2945 × 6555 = 6555 × (2945)
+ 6555 × 5 that is equal 32775
+ 6555 × 40 that is equal 262200
+ 6555 × 900 giving us 5899500
+ 6555 × 2000 what gives us 13110000

= 19304475
