Alright, let's work through 18498287 times 45484648 step by step
18498287 × 45484648 = 45484648 × (18498287)
+ 45484648 × 7 that is equal 318392536
+ 45484648 × 80 yielding 3638771840
+ 45484648 × 200 that is equal 9096929600
+ 45484648 × 8000 that results in 363877184000
+ 45484648 × 90000 resulting in 4093618320000
+ 45484648 × 400000 that results in 18193859200000
+ 45484648 × 8000000 that equals 363877184000000
+ 45484648 × 10000000 which equals 454846480000000

= 841388072797976
