Alright, let's work through 72061755 times 99105847 step by step
72061755 × 99105847 = 99105847 × (72061755)
+ 99105847 × 5 yielding 495529235
+ 99105847 × 50 yielding 4955292350
+ 99105847 × 700 what gives us 69374092900
+ 99105847 × 1000 giving us 99105847000
+ 99105847 × 60000 that results in 5946350820000
+ 99105847 × 000000 that is equal 0
+ 99105847 × 2000000 that is equal 198211694000000
+ 99105847 × 70000000 resulting in 6937409290000000

= 7141741265581485
