Alright, let's work through 1605 times 8148 step by step
1605 × 8148 = 8148 × (1605)
+ 8148 × 5 what gives us 40740
+ 8148 × 00 resulting in 0
+ 8148 × 600 giving us 4888800
+ 8148 × 1000 that is equal 8148000

= 13077540
