Alright, let's work through 1257 times 6356 step by step
1257 × 6356 = 6356 × (1257)
+ 6356 × 7 which equals 44492
+ 6356 × 50 that equals 317800
+ 6356 × 200 giving us 1271200
+ 6356 × 1000 giving us 6356000

= 7989492
