Alright, let's work through 2161398 times 8350098 step by step
2161398 × 8350098 = 8350098 × (2161398)
+ 8350098 × 8 giving us 66800784
+ 8350098 × 90 which equals 751508820
+ 8350098 × 300 producing 2505029400
+ 8350098 × 1000 that equals 8350098000
+ 8350098 × 60000 yielding 501005880000
+ 8350098 × 100000 that equals 835009800000
+ 8350098 × 2000000 yielding 16700196000000

= 18047885117004
