12496621 divided by 804 
Our goal is to divide 12496621 by 804.

On to step 1:
The number 804 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 804

Step 2:
The number 804 fits into 12 0 times, leaving a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Bring next digit (4) of the dividend behind the 12 and repeat the process: 124 / 804

Going ahead to step 3:
124 divided by 804 is 0 with a remainder of 124.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 124, we get 124.
Bring next digit (9) of the dividend behind the 124 and repeat the process: 1249 / 804

Let's proceed to step 4:
1249 divided by 804 is 1 with a remainder of 445.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 445 after subtracting 804 from 1249.
Fetch the next digit (6) from the dividend, attach it to 445 and continue: 4456 / 804

On to step 5:
When dividing 4456 by 804, we get 5 with a remainder of 436.
Write down 5 as next digit of the result. 
Result so far: 15.0
Deduct 4020 from 4456 and we're left with 436.
Append the next digit (6) from the dividend to 436 and continue with: 4366 / 804

Moving on to step 6:
4366 divided by 804 is 5 with a remainder of 346.
Use 5 as the next digit of our solution. 
Result so far: 155.0
Deduct 4020 from 4366 and we're left with 346.
Include the next digit (2) from the dividend after 346, then repeat: 3462 / 804

Going ahead to step 7:
When dividing 3462 by 804, we get 4 with a remainder of 246.
The number 4 becomes the next digit in our result. 
Result so far: 1554.0
If we take 3216 away from 3462, we end up with 246.
Include the next digit (1) from the dividend after 246, then repeat: 2461 / 804

Let's proceed to step 8:
804 goes into 2461 3 times with a remainder of 49.
The number 3 becomes the next digit in our result. 
Result so far: 15543.0
If we take 2412 away from 2461, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Going ahead to step 9:
When dividing 490 by 804, we get 0 with a remainder of 490.
Write down 0 as next digit of the result. 
Result so far: 15543.0
The remainder is 490 after subtracting 0 from 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Advancing to step 10:
If we divide 4900 by 804, we get 6 and a remainder of 76.
The number 6 becomes the next digit in our result. 
Result so far: 15543.06
The remainder is 76 after subtracting 4824 from 4900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 11:
804 can be fit into 760 0 times, resulting in a remainder of 760.
The number 0 becomes the next digit in our result. 
Result so far: 15543.06
Subtracting 0 from 760 leaves us with 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

Moving on to step 12:
804 can be fit into 7600 9 times, resulting in a remainder of 364.
Record the quotient 9 as the next digit in the result. 
Result so far: 15543.0609
Subtracting 7236 from 7600 leaves us with 364.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3640, and continue the process.

Let's proceed to step 13:
If we divide 3640 by 804, we get 4 and a remainder of 424.
Write down 4 as next digit of the result. 
Result so far: 15543.06094
Subtract 3216 from 3640 to get 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

On to step 14:
804 can be fit into 4240 5 times, resulting in a remainder of 220.
Write down 5 as next digit of the result. 
Result so far: 15543.060945
Subtracting 4020 from 4240 leaves us with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Let's proceed to step 15:
If we divide 2200 by 804, we get 2 and a remainder of 592.
Put 2 as the next digit of the answer. 
Result so far: 15543.0609452
Subtracting 1608 from 2200 leaves us with 592.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5920, and continue the process.

Let's proceed to step 16:
When dividing 5920 by 804, we get 7 with a remainder of 292.
The number 7 becomes the next digit in our result. 
Result so far: 15543.06094527
Subtracting 5628 from 5920 leaves us with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

After the division, we end up with 15543.06094527 and a remainder of 2.92e-07.