Alright, let's work through 98982885 times 21234687 step by step
98982885 × 21234687 = 21234687 × (98982885)
+ 21234687 × 5 resulting in 106173435
+ 21234687 × 80 which equals 1698774960
+ 21234687 × 800 resulting in 16987749600
+ 21234687 × 2000 producing 42469374000
+ 21234687 × 80000 that results in 1698774960000
+ 21234687 × 900000 that equals 19111218300000
+ 21234687 × 8000000 resulting in 169877496000000
+ 21234687 × 90000000 what gives us 1911121830000000

= 2101870581331995
