Alright, let's work through 56445699 times 72121027 step by step
56445699 × 72121027 = 72121027 × (56445699)
+ 72121027 × 9 producing 649089243
+ 72121027 × 90 yielding 6490892430
+ 72121027 × 600 that results in 43272616200
+ 72121027 × 5000 that equals 360605135000
+ 72121027 × 40000 resulting in 2884841080000
+ 72121027 × 400000 that results in 28848410800000
+ 72121027 × 6000000 that results in 432726162000000
+ 72121027 × 50000000 resulting in 3606051350000000

= 4070921781612873
