Let's calculate 6436 x 7557
6436 × 7557 = 7557 × (6436)
+ 7557 × 6 resulting in 45342
+ 7557 × 30 that results in 226710
+ 7557 × 400 giving us 3022800
+ 7557 × 6000 what gives us 45342000

= 48636852
