We're going to solve 1992 multiplied by 6520
1992 × 6520 = 6520 × (1992)
+ 6520 × 2 what gives us 13040
+ 6520 × 90 resulting in 586800
+ 6520 × 900 that results in 5868000
+ 6520 × 1000 what gives us 6520000

= 12987840
