Alright, let's work through 1820 times 4717 step by step
1820 × 4717 = 4717 × (1820)
+ 4717 × 0 what gives us 0
+ 4717 × 20 giving us 94340
+ 4717 × 800 producing 3773600
+ 4717 × 1000 resulting in 4717000

= 8584940
