Alright, let's work through 45108505 times 80603479 step by step
45108505 × 80603479 = 80603479 × (45108505)
+ 80603479 × 5 that is equal 403017395
+ 80603479 × 00 that is equal 0
+ 80603479 × 500 that equals 40301739500
+ 80603479 × 8000 what gives us 644827832000
+ 80603479 × 00000 giving us 0
+ 80603479 × 100000 that results in 8060347900000
+ 80603479 × 5000000 resulting in 403017395000000
+ 80603479 × 40000000 yielding 3224139160000000

= 3635902435488895
