We're going to solve 40007984 multiplied by 28138193
40007984 × 28138193 = 28138193 × (40007984)
+ 28138193 × 4 that is equal 112552772
+ 28138193 × 80 that equals 2251055440
+ 28138193 × 900 that results in 25324373700
+ 28138193 × 7000 which equals 196967351000
+ 28138193 × 00000 giving us 0
+ 28138193 × 000000 yielding 0
+ 28138193 × 0000000 resulting in 0
+ 28138193 × 40000000 what gives us 1125527720000000

= 1125752375332912
