Alright, let's work through 79842271 times 21585255 step by step
79842271 × 21585255 = 21585255 × (79842271)
+ 21585255 × 1 yielding 21585255
+ 21585255 × 70 yielding 1510967850
+ 21585255 × 200 resulting in 4317051000
+ 21585255 × 2000 that equals 43170510000
+ 21585255 × 40000 producing 863410200000
+ 21585255 × 800000 that equals 17268204000000
+ 21585255 × 9000000 that is equal 194267295000000
+ 21585255 × 70000000 yielding 1510967850000000

= 1723415779314105
