Alright, let's work through 12826909 times 6077688 step by step
12826909 × 6077688 = 6077688 × (12826909)
+ 6077688 × 9 that equals 54699192
+ 6077688 × 00 that is equal 0
+ 6077688 × 900 that is equal 5469919200
+ 6077688 × 6000 giving us 36466128000
+ 6077688 × 20000 that equals 121553760000
+ 6077688 × 800000 what gives us 4862150400000
+ 6077688 × 2000000 producing 12155376000000
+ 6077688 × 10000000 giving us 60776880000000

= 77957950906392
