Alright, let's work through 99701321 times 3811105 step by step
99701321 × 3811105 = 3811105 × (99701321)
+ 3811105 × 1 what gives us 3811105
+ 3811105 × 20 that equals 76222100
+ 3811105 × 300 that is equal 1143331500
+ 3811105 × 1000 giving us 3811105000
+ 3811105 × 00000 resulting in 0
+ 3811105 × 700000 that equals 2667773500000
+ 3811105 × 9000000 producing 34299945000000
+ 3811105 × 90000000 that is equal 342999450000000

= 379972202969705
