Alright, let's work through 13106555 times 79805215 step by step
13106555 × 79805215 = 79805215 × (13106555)
+ 79805215 × 5 producing 399026075
+ 79805215 × 50 yielding 3990260750
+ 79805215 × 500 yielding 39902607500
+ 79805215 × 6000 what gives us 478831290000
+ 79805215 × 00000 what gives us 0
+ 79805215 × 100000 which equals 7980521500000
+ 79805215 × 3000000 giving us 239415645000000
+ 79805215 × 10000000 producing 798052150000000

= 1045971439684325
