We look at the division of 30574209 by 40 
We're looking to find how many times 40 goes into 30574209.

On to step 1:
3 divided by 40 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 40

Step 2:
30 divided by 40 is 0 with a remainder of 30.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 30 after subtracting 0 from 30.
Take the next digit (5) from the dividend and append it to 30, then repeat: 305 / 40

Moving on to step 3:
If we divide 305 by 40, we get 7 and a remainder of 25.
The next digit of our result is 7. 
Result so far: 7.0
If we subtract 280 from 305, we get 25.
Take the next digit (7) from the dividend and append it to 25, then repeat: 257 / 40

Advancing to step 4:
40 goes into 257 6 times with a remainder of 17.
The next digit of our result is 6. 
Result so far: 76.0
If we subtract 240 from 257, we get 17.
Include the next digit (4) from the dividend after 17, then repeat: 174 / 40

Moving on to step 5:
174 divided by 40 is 4 with a remainder of 14.
The next digit of our result is 4. 
Result so far: 764.0
If we take 160 away from 174, we end up with 14.
Bring next digit (2) of the dividend behind the 14 and repeat the process: 142 / 40

Going ahead to step 6:
142 divided by 40 is 3 with a remainder of 22.
The number 3 becomes the next digit in our result. 
Result so far: 7643.0
If we take 120 away from 142, we end up with 22.
Grab the next digit (0) from the dividend, add it to 22, then carry on: 220 / 40

Step 7:
40 can be fit into 220 5 times, resulting in a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 76435.0
The remainder is 20 after subtracting 200 from 220.
Bring next digit (9) of the dividend behind the 20 and repeat the process: 209 / 40

Going ahead to step 8:
When dividing 209 by 40, we get 5 with a remainder of 9.
Write down 5 as next digit of the result. 
Result so far: 764355.0
Deduct 200 from 209 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 9:
90 divided by 40 is 2 with a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 764355.2
Subtract 80 from 90 to 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 10:
100 divided by 40 is 2 with a remainder of 20.
The number 2 becomes the next digit in our result. 
Result so far: 764355.22
Deduct 80 from 100 and we're left 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.

The quotient of the division is 764355.22, and the remainder is 0.02.