8439491 ÷ 726 
We want to figure out the number of times 8439491 can be divided by 726.

Going ahead to step 1:
726 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (4) from the dividend to 8 and continue with: 84 / 726

Moving on to step 2:
If we divide 84 by 726, we get 0 and a remainder of 84.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 84, we get 84.
Bring next digit (3) of the dividend behind the 84 and repeat the process: 843 / 726

Moving on to step 3:
843 divided by 726 is 1 with a remainder of 117.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 726 away from 843, we end up with 117.
Fetch the next digit (9) from the dividend, attach it to 117 and continue: 1179 / 726

Moving on to step 4:
The number 726 fits into 1179 1 times, leaving a remainder of 453.
Use 1 as the next digit of our solution. 
Result so far: 11.0
If we take 726 away from 1179, we end up with 453.
Fetch the next digit (4) from the dividend, attach it to 453 and continue: 4534 / 726

On to step 5:
The number 726 fits into 4534 6 times, leaving a remainder of 178.
Put 6 as the next digit of the answer. 
Result so far: 116.0
Subtracting 4356 from 4534 leaves us with 178.
Include the next digit (9) from the dividend after 178, then repeat: 1789 / 726

Advancing to step 6:
The number 726 fits into 1789 2 times, leaving a remainder of 337.
The next digit of our result is 2. 
Result so far: 1162.0
If we subtract 1452 from 1789, we get 337.
Grab the next digit (1) from the dividend, add it to 337, then carry on: 3371 / 726

Going ahead to step 7:
726 goes into 3371 4 times with a remainder of 467.
Record the quotient 4 as the next digit in the result. 
Result so far: 11624.0
If we subtract 2904 from 3371, we get 467.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4670, and continue the process.

Going ahead to step 8:
If we divide 4670 by 726, we get 6 and a remainder of 314.
The next digit of our result is 6. 
Result so far: 11624.6
The remainder is 314 after subtracting 4356 from 4670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

Let's proceed to step 9:
The number 726 fits into 3140 4 times, leaving a remainder of 236.
Record the quotient 4 as the next digit in the result. 
Result so far: 11624.64
Subtract 2904 from 3140 to get 236.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

Advancing to step 10:
726 can be fit into 2360 3 times, resulting in a remainder of 182.
Put 3 as the next digit of the answer. 
Result so far: 11624.643
Deduct 2178 from 2360 and we're left with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Step 11:
726 can be fit into 1820 2 times, resulting in a remainder of 368.
Put 2 as the next digit of the answer. 
Result so far: 11624.6432
Subtract 1452 from 1820 to get 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Step 12:
726 can be fit into 3680 5 times, resulting in a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 11624.64325
Subtract 3630 from 3680 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 13:
726 can be fit into 500 0 times, resulting in a remainder of 500.
Use 0 as the next digit of our solution. 
Result so far: 11624.64325
If we subtract 0 from 500, we get 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

On to step 14:
The number 726 fits into 5000 6 times, leaving a remainder of 644.
Record the quotient 6 as the next digit in the result. 
Result so far: 11624.6432506
Subtract 4356 from 5000 to get 644.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6440, and continue the process.

Advancing to step 15:
When dividing 6440 by 726, we get 8 with a remainder of 632.
Write down 8 as next digit of the result. 
Result so far: 11624.64325068
The remainder is 632 after subtracting 5808 from 6440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6320, and continue the process.

After the division, we end up with 11624.64325068 and a remainder of 6.32e-07.