Sure thing! Let's multiply 12999923 and 21038509 together
12999923 × 21038509 = 21038509 × (12999923)
+ 21038509 × 3 resulting in 63115527
+ 21038509 × 20 resulting in 420770180
+ 21038509 × 900 what gives us 18934658100
+ 21038509 × 9000 yielding 189346581000
+ 21038509 × 90000 yielding 1893465810000
+ 21038509 × 900000 that equals 18934658100000
+ 21038509 × 2000000 which equals 42077018000000
+ 21038509 × 10000000 resulting in 210385090000000

= 273498997034807
