We're going to solve 8109 multiplied by 6610
8109 × 6610 = 6610 × (8109)
+ 6610 × 9 resulting in 59490
+ 6610 × 00 that results in 0
+ 6610 × 100 what gives us 661000
+ 6610 × 8000 producing 52880000

= 53600490
