Alright, let's work through 10000 times 125 step by step
10000 × 125 = 125 × (10000)
+ 125 × 0 that is equal 0
+ 125 × 00 what gives us 0
+ 125 × 000 yielding 0
+ 125 × 0000 that is equal 0
+ 125 × 10000 producing 1250000

= 1250000
