We're going to solve 1010 multiplied by 3125
1010 × 3125 = 3125 × (1010)
+ 3125 × 0 producing 0
+ 3125 × 10 producing 31250
+ 3125 × 000 that is equal 0
+ 3125 × 1000 that is equal 3125000

= 3156250
