We're going to solve 8156 multiplied by 7140
8156 × 7140 = 7140 × (8156)
+ 7140 × 6 producing 42840
+ 7140 × 50 yielding 357000
+ 7140 × 100 that results in 714000
+ 7140 × 8000 giving us 57120000

= 58233840
