Alright, let's work through 87970087 times 40579135 step by step
87970087 × 40579135 = 40579135 × (87970087)
+ 40579135 × 7 giving us 284053945
+ 40579135 × 80 resulting in 3246330800
+ 40579135 × 000 producing 0
+ 40579135 × 0000 that equals 0
+ 40579135 × 70000 that equals 2840539450000
+ 40579135 × 900000 producing 36521221500000
+ 40579135 × 7000000 yielding 284053945000000
+ 40579135 × 80000000 that results in 3246330800000000

= 3569750036334745
