Alright, let's work through 18644249 times 70942255 step by step
18644249 × 70942255 = 70942255 × (18644249)
+ 70942255 × 9 that results in 638480295
+ 70942255 × 40 giving us 2837690200
+ 70942255 × 200 yielding 14188451000
+ 70942255 × 4000 resulting in 283769020000
+ 70942255 × 40000 that equals 2837690200000
+ 70942255 × 600000 yielding 42565353000000
+ 70942255 × 8000000 giving us 567538040000000
+ 70942255 × 10000000 that is equal 709422550000000

= 1322665066841495
