Alright, let's work through 18039691 times 26056974 step by step
18039691 × 26056974 = 26056974 × (18039691)
+ 26056974 × 1 that is equal 26056974
+ 26056974 × 90 that is equal 2345127660
+ 26056974 × 600 that results in 15634184400
+ 26056974 × 9000 resulting in 234512766000
+ 26056974 × 30000 that equals 781709220000
+ 26056974 × 000000 which equals 0
+ 26056974 × 8000000 giving us 208455792000000
+ 26056974 × 10000000 producing 260569740000000

= 470059759355034
