Alright, let's work through 91121506 times 80980749 step by step
91121506 × 80980749 = 80980749 × (91121506)
+ 80980749 × 6 that results in 485884494
+ 80980749 × 00 yielding 0
+ 80980749 × 500 which equals 40490374500
+ 80980749 × 1000 which equals 80980749000
+ 80980749 × 20000 resulting in 1619614980000
+ 80980749 × 100000 giving us 8098074900000
+ 80980749 × 1000000 that is equal 80980749000000
+ 80980749 × 90000000 that results in 7288267410000000

= 7379087805887994
