We're going to solve 1520 multiplied by 3390
1520 × 3390 = 3390 × (1520)
+ 3390 × 0 that results in 0
+ 3390 × 20 that results in 67800
+ 3390 × 500 that is equal 1695000
+ 3390 × 1000 that is equal 3390000

= 5152800
