Alright, let's work through 1900 times 1010 step by step
1900 × 1010 = 1010 × (1900)
+ 1010 × 0 that equals 0
+ 1010 × 00 which equals 0
+ 1010 × 900 what gives us 909000
+ 1010 × 1000 what gives us 1010000

= 1919000
