Alright, let's work through 39980690 times 61035870 step by step
39980690 × 61035870 = 61035870 × (39980690)
+ 61035870 × 0 which equals 0
+ 61035870 × 90 that results in 5493228300
+ 61035870 × 600 that equals 36621522000
+ 61035870 × 0000 that results in 0
+ 61035870 × 80000 that results in 4882869600000
+ 61035870 × 900000 that results in 54932283000000
+ 61035870 × 9000000 that results in 549322830000000
+ 61035870 × 30000000 resulting in 1831076100000000

= 2440256197350300
