Alright, let's work through 91074682 times 99642009 step by step
91074682 × 99642009 = 99642009 × (91074682)
+ 99642009 × 2 that is equal 199284018
+ 99642009 × 80 resulting in 7971360720
+ 99642009 × 600 yielding 59785205400
+ 99642009 × 4000 that equals 398568036000
+ 99642009 × 70000 which equals 6974940630000
+ 99642009 × 000000 that is equal 0
+ 99642009 × 1000000 yielding 99642009000000
+ 99642009 × 90000000 giving us 8967780810000000

= 9074864283516138
