Alright, let's work through 5130 times 3845 step by step
5130 × 3845 = 3845 × (5130)
+ 3845 × 0 which equals 0
+ 3845 × 30 resulting in 115350
+ 3845 × 100 giving us 384500
+ 3845 × 5000 that results in 19225000

= 19724850
