18605 ÷ 5 = 3721 R0
We're going to perform division on 18605 with 5 as the divisor.

Step 1:
5 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of of the result. 
Result so far: 0
Subtract 0 from 1 to get 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 5

Step 2:
5 goes into 18 3 times with a remainder of 3.
Write down 3 as next digit of of the result. 
Result so far: 3
Subtract 15 from 18 to get 3.
Bring next digit (6) of the dividend behind the 3 and repeat the process: 36 / 5

Step 3:
5 goes into 36 7 times with a remainder of 1.
Write down 7 as next digit of of the result. 
Result so far: 37
Subtract 35 from 36 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: 372
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: 3721
Subtract 5 from 5 to get 0.

The final result is 3721 with a remainder of 0.