Alright, let's work through 21065255 times 97161251 step by step
21065255 × 97161251 = 97161251 × (21065255)
+ 97161251 × 5 resulting in 485806255
+ 97161251 × 50 that equals 4858062550
+ 97161251 × 200 what gives us 19432250200
+ 97161251 × 5000 which equals 485806255000
+ 97161251 × 60000 yielding 5829675060000
+ 97161251 × 000000 resulting in 0
+ 97161251 × 1000000 resulting in 97161251000000
+ 97161251 × 20000000 giving us 1943225020000000

= 2046726528434005
