Alright, let's work through 42786747 times 87752561 step by step
42786747 × 87752561 = 87752561 × (42786747)
+ 87752561 × 7 which equals 614267927
+ 87752561 × 40 what gives us 3510102440
+ 87752561 × 700 giving us 61426792700
+ 87752561 × 6000 that equals 526515366000
+ 87752561 × 80000 producing 7020204880000
+ 87752561 × 700000 giving us 61426792700000
+ 87752561 × 2000000 giving us 175505122000000
+ 87752561 × 40000000 that is equal 3510102440000000

= 3754646626109067
