Alright, let's work through 21400256 times 32509001 step by step
21400256 × 32509001 = 32509001 × (21400256)
+ 32509001 × 6 that equals 195054006
+ 32509001 × 50 that is equal 1625450050
+ 32509001 × 200 what gives us 6501800200
+ 32509001 × 0000 what gives us 0
+ 32509001 × 00000 that equals 0
+ 32509001 × 400000 what gives us 13003600400000
+ 32509001 × 1000000 producing 32509001000000
+ 32509001 × 20000000 resulting in 650180020000000

= 695700943704256
