40605 ÷ 5 = 8121 R0
We're going to perform division on 40605 with 5 as the divisor.

Step 1:
5 goes into 4 0 times with a remainder of 4.
Write down 0 as next digit of of the result. 
Result so far: 0
Subtract 0 from 4 to get 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 5

Step 2:
5 goes into 40 8 times with a remainder of 0.
Write down 8 as next digit of of the result. 
Result so far: 8
Subtract 40 from 40 to get 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 5

Step 3:
5 goes into 6 1 times with a remainder of 1.
Write down 1 as next digit of of the result. 
Result so far: 81
Subtract 5 from 6 to get 1.
Bring next digit (0) of the dividend behind the 1 and repeat the process: 10 / 5

Step 4:
5 goes into 10 2 times with a remainder of 0.
Write down 2 as next digit of of the result. 
Result so far: 812
Subtract 10 from 10 to get 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 5

Step 5:
5 goes into 5 1 times with a remainder of 0.
Write down 1 as next digit of of the result. 
Result so far: 8121
Subtract 5 from 5 to get 0.

The final result is 8121 with a remainder of 0.