Alright, let's work through 1901 times 6366 step by step
1901 × 6366 = 6366 × (1901)
+ 6366 × 1 giving us 6366
+ 6366 × 00 which equals 0
+ 6366 × 900 that results in 5729400
+ 6366 × 1000 what gives us 6366000

= 12101766
