We divide 671579 by 40
We want to divide 671579 by 40.

Step 1:
The number 40 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (7) of the dividend behind the 6 and repeat the process: 67 / 40

Let's proceed to step 2:
If we divide 67 by 40, we get 1 and a remainder of 27.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 40 from 67, we get 27.
Fetch the next digit (1) from the dividend, attach it to 27 and continue: 271 / 40

Step 3:
When dividing 271 by 40, we get 6 with a remainder of 31.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
If we take 240 away from 271, we end up with 31.
Bring next digit (5) of the dividend behind the 31 and repeat the process: 315 / 40

Step 4:
40 can be fit into 315 7 times, resulting in a remainder of 35.
Record the quotient 7 as the next digit in the result. 
Result so far: 167.0
Subtract 280 from 315 to get 35.
Take the next digit (7) from the dividend and append it to 35, then repeat: 357 / 40

Advancing to step 5:
The number 40 fits into 357 8 times, leaving a remainder of 37.
The number 8 becomes the next digit in our result. 
Result so far: 1678.0
Subtracting 320 from 357 leaves us with 37.
Take the next digit (9) from the dividend and append it to 37, then repeat: 379 / 40

On to step 6:
When dividing 379 by 40, we get 9 with a remainder of 19.
Write down 9 as next digit of the result. 
Result so far: 16789.0
The remainder is 19 after subtracting 360 from 379.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 7:
When dividing 190 by 40, we get 4 with a remainder of 30.
The number 4 becomes the next digit in our result. 
Result so far: 16789.4
Deduct 160 from 190 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 8:
40 can be fit into 300 7 times, resulting in a remainder of 20.
Use 7 as the next digit of our solution. 
Result so far: 16789.47
Deduct 280 from 300 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.

Step 9:
200 divided by 40 is 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 16789.475
If we subtract 200 from 200, we 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.

Step 10:
40 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 16789.475
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 11:
If we divide 0 by 40, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 16789.475
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.

Our division results in 16789.475 with a remaining 0.0.