Alright, let's work through 2107 times 7557 step by step
2107 × 7557 = 7557 × (2107)
+ 7557 × 7 that results in 52899
+ 7557 × 00 giving us 0
+ 7557 × 100 resulting in 755700
+ 7557 × 2000 producing 15114000

= 15922599
