Alright, let's work through 1451 times 8220 step by step
1451 × 8220 = 8220 × (1451)
+ 8220 × 1 giving us 8220
+ 8220 × 50 that is equal 411000
+ 8220 × 400 yielding 3288000
+ 8220 × 1000 that is equal 8220000

= 11927220
