Alright, let's work through 5109 times 1505 step by step
5109 × 1505 = 1505 × (5109)
+ 1505 × 9 giving us 13545
+ 1505 × 00 what gives us 0
+ 1505 × 100 what gives us 150500
+ 1505 × 5000 what gives us 7525000

= 7689045
