Alright, let's work through 1820 times 6236 step by step
1820 × 6236 = 6236 × (1820)
+ 6236 × 0 that results in 0
+ 6236 × 20 yielding 124720
+ 6236 × 800 yielding 4988800
+ 6236 × 1000 that results in 6236000

= 11349520
