Alright, let's work through 80376221 times 55270602 step by step
80376221 × 55270602 = 55270602 × (80376221)
+ 55270602 × 1 yielding 55270602
+ 55270602 × 20 yielding 1105412040
+ 55270602 × 200 resulting in 11054120400
+ 55270602 × 6000 that is equal 331623612000
+ 55270602 × 70000 that results in 3868942140000
+ 55270602 × 300000 which equals 16581180600000
+ 55270602 × 0000000 producing 0
+ 55270602 × 80000000 which equals 4421648160000000

= 4442442121155042
