1661317 ÷ 804 
Our goal is to divide 1661317 by 804.

Step 1:
1 divided by 804 is 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 804

On to step 2:
804 can be fit into 16 0 times, resulting in a remainder of 16.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 16 after subtracting 0 from 16.
Grab the next digit (6) from the dividend, add it to 16, then carry on: 166 / 804

Let's proceed to step 3:
166 divided by 804 is 0 with a remainder of 166.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 166 after subtracting 0 from 166.
Bring next digit (1) of the dividend behind the 166 and repeat the process: 1661 / 804

On to step 4:
804 can be fit into 1661 2 times, resulting in a remainder of 53.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 1608 from 1661, we get 53.
Fetch the next digit (3) from the dividend, attach it to 53 and continue: 533 / 804

On to step 5:
If we divide 533 by 804, we get 0 and a remainder of 533.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
The remainder is 533 after subtracting 0 from 533.
Fetch the next digit (1) from the dividend, attach it to 533 and continue: 5331 / 804

Moving on to step 6:
804 goes into 5331 6 times with a remainder of 507.
The next digit of our result is 6. 
Result so far: 206.0
Subtracting 4824 from 5331 leaves us with 507.
Append the next digit (7) from the dividend to 507 and continue with: 5077 / 804

Advancing to step 7:
When dividing 5077 by 804, we get 6 with a remainder of 253.
The number 6 becomes the next digit in our result. 
Result so far: 2066.0
Deduct 4824 from 5077 and we're left with 253.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2530, and continue the process.

Going ahead to step 8:
2530 divided by 804 is 3 with a remainder of 118.
Put 3 as the next digit of the answer. 
Result so far: 2066.3
Deduct 2412 from 2530 and we're left with 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Let's proceed to step 9:
804 can be fit into 1180 1 times, resulting in a remainder of 376.
Put 1 as the next digit of the answer. 
Result so far: 2066.31
The remainder is 376 after subtracting 804 from 1180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

Advancing to step 10:
The number 804 fits into 3760 4 times, leaving a remainder of 544.
The number 4 becomes the next digit in our result. 
Result so far: 2066.314
The remainder is 544 after subtracting 3216 from 3760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

Moving on to step 11:
If we divide 5440 by 804, we get 6 and a remainder of 616.
Write down 6 as next digit of the result. 
Result so far: 2066.3146
Deduct 4824 from 5440 and we're left with 616.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6160, and continue the process.

Going ahead to step 12:
6160 divided by 804 is 7 with a remainder of 532.
Put 7 as the next digit of the answer. 
Result so far: 2066.31467
If we subtract 5628 from 6160, we get 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

Let's proceed to step 13:
5320 divided by 804 is 6 with a remainder of 496.
The next digit of our result is 6. 
Result so far: 2066.314676
The remainder is 496 after subtracting 4824 from 5320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

Moving on to step 14:
804 goes into 4960 6 times with a remainder of 136.
The number 6 becomes the next digit in our result. 
Result so far: 2066.3146766
If we subtract 4824 from 4960, we get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

The final outcome is 2066.3146766, with a leftover of 1.36e-06.