We're dividing 87438909 by 680 
We want to divide 87438909 by 680.

Step 1:
When dividing 8 by 680, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 680

On to step 2:
The number 680 fits into 87 0 times, leaving a remainder of 87.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 87 to get 87.
Fetch the next digit (4) from the dividend, attach it to 87 and continue: 874 / 680

On to step 3:
The number 680 fits into 874 1 times, leaving a remainder of 194.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 680 away from 874, we end up with 194.
Include the next digit (3) from the dividend after 194, then repeat: 1943 / 680

Let's proceed to step 4:
If we divide 1943 by 680, we get 2 and a remainder of 583.
Write down 2 as next digit of the result. 
Result so far: 12.0
If we take 1360 away from 1943, we end up with 583.
Include the next digit (8) from the dividend after 583, then repeat: 5838 / 680

Let's proceed to step 5:
The number 680 fits into 5838 8 times, leaving a remainder of 398.
Record the quotient 8 as the next digit in the result. 
Result so far: 128.0
If we subtract 5440 from 5838, we get 398.
Bring next digit (9) of the dividend behind the 398 and repeat the process: 3989 / 680

On to step 6:
680 goes into 3989 5 times with a remainder of 589.
Write down 5 as next digit of the result. 
Result so far: 1285.0
If we take 3400 away from 3989, we end up with 589.
Bring next digit (0) of the dividend behind the 589 and repeat the process: 5890 / 680

On to step 7:
If we divide 5890 by 680, we get 8 and a remainder of 450.
Write down 8 as next digit of the result. 
Result so far: 12858.0
If we take 5440 away from 5890, we end up with 450.
Take the next digit (9) from the dividend and append it to 450, then repeat: 4509 / 680

Step 8:
4509 divided by 680 is 6 with a remainder of 429.
Record the quotient 6 as the next digit in the result. 
Result so far: 128586.0
If we subtract 4080 from 4509, we get 429.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4290, and continue the process.

Advancing to step 9:
If we divide 4290 by 680, we get 6 and a remainder of 210.
Use 6 as the next digit of our solution. 
Result so far: 128586.6
Subtract 4080 from 4290 to get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

On to step 10:
2100 divided by 680 is 3 with a remainder of 60.
The number 3 becomes the next digit in our result. 
Result so far: 128586.63
If we subtract 2040 from 2100, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 11:
680 can be fit into 600 0 times, resulting in a remainder of 600.
Use 0 as the next digit of our solution. 
Result so far: 128586.63
Subtracting 0 from 600 leaves us with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Step 12:
The number 680 fits into 6000 8 times, leaving a remainder of 560.
The number 8 becomes the next digit in our result. 
Result so far: 128586.6308
If we subtract 5440 from 6000, we get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

On to step 13:
When dividing 5600 by 680, we get 8 with a remainder of 160.
Use 8 as the next digit of our solution. 
Result so far: 128586.63088
Subtract 5440 from 5600 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

The quotient of the division is 128586.63088, and the remainder is 0.00016.