Alright, let's work through 21216044 times 61366939 step by step
21216044 × 61366939 = 61366939 × (21216044)
+ 61366939 × 4 what gives us 245467756
+ 61366939 × 40 what gives us 2454677560
+ 61366939 × 000 that equals 0
+ 61366939 × 6000 resulting in 368201634000
+ 61366939 × 10000 that is equal 613669390000
+ 61366939 × 200000 resulting in 12273387800000
+ 61366939 × 1000000 what gives us 61366939000000
+ 61366939 × 20000000 yielding 1227338780000000

= 1301963677969316
