8402240 divided by 680 
Let's see how many times 680 fits into 8402240.

Step 1:
If we divide 8 by 680, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (4) from the dividend after 8, then repeat: 84 / 680

Going ahead to step 2:
680 can be fit into 84 0 times, resulting in a remainder of 84.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 84, we end up with 84.
Take the next digit (0) from the dividend and append it to 84, then repeat: 840 / 680

Let's proceed to step 3:
If we divide 840 by 680, we get 1 and a remainder of 160.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 680 from 840 to get 160.
Include the next digit (2) from the dividend after 160, then repeat: 1602 / 680

Let's proceed to step 4:
The number 680 fits into 1602 2 times, leaving a remainder of 242.
Write down 2 as next digit of the result. 
Result so far: 12.0
Subtracting 1360 from 1602 leaves us with 242.
Include the next digit (2) from the dividend after 242, then repeat: 2422 / 680

Advancing to step 5:
680 can be fit into 2422 3 times, resulting in a remainder of 382.
Put 3 as the next digit of the answer. 
Result so far: 123.0
Subtracting 2040 from 2422 leaves us with 382.
Include the next digit (4) from the dividend after 382, then repeat: 3824 / 680

Let's proceed to step 6:
680 goes into 3824 5 times with a remainder of 424.
Write down 5 as next digit of the result. 
Result so far: 1235.0
If we subtract 3400 from 3824, we get 424.
Grab the next digit (0) from the dividend, add it to 424, then carry on: 4240 / 680

Let's proceed to step 7:
680 can be fit into 4240 6 times, resulting in a remainder of 160.
Record the quotient 6 as the next digit in the result. 
Result so far: 12356.0
Subtract 4080 from 4240 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.

Step 8:
When dividing 1600 by 680, we get 2 with a remainder of 240.
The number 2 becomes the next digit in our result. 
Result so far: 12356.2
If we subtract 1360 from 1600, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Let's proceed to step 9:
If we divide 2400 by 680, we get 3 and a remainder of 360.
The next digit of our result is 3. 
Result so far: 12356.23
If we subtract 2040 from 2400, we get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Let's proceed to step 10:
3600 divided by 680 is 5 with a remainder of 200.
The number 5 becomes the next digit in our result. 
Result so far: 12356.235
If we take 3400 away from 3600, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Let's proceed to step 11:
680 can be fit into 2000 2 times, resulting in a remainder of 640.
The number 2 becomes the next digit in our result. 
Result so far: 12356.2352
Subtract 1360 from 2000 to get 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Let's proceed to step 12:
680 can be fit into 6400 9 times, resulting in a remainder of 280.
Record the quotient 9 as the next digit in the result. 
Result so far: 12356.23529
Subtracting 6120 from 6400 leaves us with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Let's proceed to step 13:
The number 680 fits into 2800 4 times, leaving a remainder of 80.
Write down 4 as next digit of the result. 
Result so far: 12356.235294
Deduct 2720 from 2800 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 14:
680 can be fit into 800 1 times, resulting in a remainder of 120.
The number 1 becomes the next digit in our result. 
Result so far: 12356.2352941
If we take 680 away from 800, we end up with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Let's proceed to step 15:
680 can be fit into 1200 1 times, resulting in a remainder of 520.
The number 1 becomes the next digit in our result. 
Result so far: 12356.23529411
The remainder is 520 after subtracting 680 from 1200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

In conclusion, the division gives 12356.23529411 with a balance of 5.2e-07.