Alright, let's work through 1200 times 8644 step by step
1200 × 8644 = 8644 × (1200)
+ 8644 × 0 what gives us 0
+ 8644 × 00 giving us 0
+ 8644 × 200 resulting in 1728800
+ 8644 × 1000 that is equal 8644000

= 10372800
