Alright, let's work through 1821 times 9551 step by step
1821 × 9551 = 9551 × (1821)
+ 9551 × 1 giving us 9551
+ 9551 × 20 that results in 191020
+ 9551 × 800 what gives us 7640800
+ 9551 × 1000 resulting in 9551000

= 17392371
