We're dividing 603454 by 40 
Let's see how many times 40 fits into 603454.

Let's proceed to step 1:
6 divided by 40 is 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Include the next digit (0) from the dividend after 6, then repeat: 60 / 40

Step 2:
The number 40 fits into 60 1 times, leaving a remainder of 20.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 40 away from 60, we end up with 20.
Take the next digit (3) from the dividend and append it to 20, then repeat: 203 / 40

Let's proceed to step 3:
If we divide 203 by 40, we get 5 and a remainder of 3.
Put 5 as the next digit of the answer. 
Result so far: 15.0
If we subtract 200 from 203, we get 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 40

Advancing to step 4:
When dividing 34 by 40, we get 0 with a remainder of 34.
The next digit of our result is 0. 
Result so far: 150.0
Subtract 0 from 34 to get 34.
Bring next digit (5) of the dividend behind the 34 and repeat the process: 345 / 40

Moving on to step 5:
The number 40 fits into 345 8 times, leaving a remainder of 25.
Put 8 as the next digit of the answer. 
Result so far: 1508.0
Subtract 320 from 345 to get 25.
Take the next digit (4) from the dividend and append it to 25, then repeat: 254 / 40

On to step 6:
The number 40 fits into 254 6 times, leaving a remainder of 14.
Put 6 as the next digit of the answer. 
Result so far: 15086.0
Subtract 240 from 254 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 7:
When dividing 140 by 40, we get 3 with a remainder of 20.
Use 3 as the next digit of our solution. 
Result so far: 15086.3
Subtracting 120 from 140 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 8:
When dividing 200 by 40, we get 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 15086.35
Subtracting 200 from 200 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
When dividing 0 by 40, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 15086.35
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 10:
40 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 15086.35
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 15086.35, and the remainder is 0.0.