Alright, let's work through 3125943 times 33861679 step by step
3125943 × 33861679 = 33861679 × (3125943)
+ 33861679 × 3 resulting in 101585037
+ 33861679 × 40 producing 1354467160
+ 33861679 × 900 yielding 30475511100
+ 33861679 × 5000 that equals 169308395000
+ 33861679 × 20000 producing 677233580000
+ 33861679 × 100000 producing 3386167900000
+ 33861679 × 3000000 resulting in 101585037000000

= 105849678438297
