300057 ÷ 40 
We want to divide 300057 by 40.

On to step 1:
40 goes into 3 0 times with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 40

Moving on to step 2:
If we divide 30 by 40, we get 0 and a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 30, we end up with 30.
Take the next digit (0) from the dividend and append it to 30, then repeat: 300 / 40

Moving on to step 3:
The number 40 fits into 300 7 times, leaving a remainder of 20.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we take 280 away from 300, we end up with 20.
Append the next digit (0) from the dividend to 20 and continue with: 200 / 40

Going ahead to step 4:
40 goes into 200 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 75.0
Subtract 200 from 200 to get 0.
Take the next digit (5) from the dividend and append it to 0, then repeat: 5 / 40

Step 5:
40 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 750.0
Subtract 0 from 5 to get 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 40

Advancing to step 6:
57 divided by 40 is 1 with a remainder of 17.
Use 1 as the next digit of our solution. 
Result so far: 7501.0
If we take 40 away from 57, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 7:
When dividing 170 by 40, we get 4 with a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 7501.4
If we subtract 160 from 170, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 8:
40 goes into 100 2 times with a remainder of 20.
Use 2 as the next digit of our solution. 
Result so far: 7501.42
Subtract 80 from 100 to get 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 9:
40 goes into 200 5 times with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 7501.425
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 10:
40 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 7501.425
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 11:
If we divide 0 by 40, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 7501.425
Subtracting 0 from 0 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.

After the division, we end up with 7501.425 and a remainder of 0.0.