Alright, let's work through 13061709 times 85621707 step by step
13061709 × 85621707 = 85621707 × (13061709)
+ 85621707 × 9 what gives us 770595363
+ 85621707 × 00 what gives us 0
+ 85621707 × 700 that is equal 59935194900
+ 85621707 × 1000 which equals 85621707000
+ 85621707 × 60000 resulting in 5137302420000
+ 85621707 × 000000 yielding 0
+ 85621707 × 3000000 giving us 256865121000000
+ 85621707 × 10000000 that equals 856217070000000

= 1118365820917263
