30945 ÷ 8 = 3868 R1
We're going to perform division on 30945 with 8 as the divisor.

Step 1:
8 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of of the result. 
Result so far: 0
Subtract 0 from 3 to get 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 8

Step 2:
8 goes into 30 3 times with a remainder of 6.
Write down 3 as next digit of of the result. 
Result so far: 3
Subtract 24 from 30 to get 6.
Bring next digit (9) of the dividend behind the 6 and repeat the process: 69 / 8

Step 3:
8 goes into 69 8 times with a remainder of 5.
Write down 8 as next digit of of the result. 
Result so far: 38
Subtract 64 from 69 to get 5.
Bring next digit (4) of the dividend behind the 5 and repeat the process: 54 / 8

Step 4:
8 goes into 54 6 times with a remainder of 6.
Write down 6 as next digit of of the result. 
Result so far: 386
Subtract 48 from 54 to get 6.
Bring next digit (5) of the dividend behind the 6 and repeat the process: 65 / 8

Step 5:
8 goes into 65 8 times with a remainder of 1.
Write down 8 as next digit of of the result. 
Result so far: 3868
Subtract 64 from 65 to get 1.

The final result is 3868 with a remainder of 1.