19864355 ÷ 649 
Our goal is to divide 19864355 by 649.

Step 1:
1 divided by 649 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 649

Advancing to step 2:
19 divided by 649 is 0 with a remainder of 19.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 19, we get 19.
Include the next digit (8) from the dividend after 19, then repeat: 198 / 649

Moving on to step 3:
198 divided by 649 is 0 with a remainder of 198.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 198 and we're left with 198.
Take the next digit (6) from the dividend and append it to 198, then repeat: 1986 / 649

Step 4:
If we divide 1986 by 649, we get 3 and a remainder of 39.
The next digit of our result is 3. 
Result so far: 3.0
If we take 1947 away from 1986, we end up with 39.
Include the next digit (4) from the dividend after 39, then repeat: 394 / 649

On to step 5:
If we divide 394 by 649, we get 0 and a remainder of 394.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
Subtract 0 from 394 to get 394.
Fetch the next digit (3) from the dividend, attach it to 394 and continue: 3943 / 649

Step 6:
When dividing 3943 by 649, we get 6 with a remainder of 49.
The next digit of our result is 6. 
Result so far: 306.0
Subtract 3894 from 3943 to get 49.
Take the next digit (5) from the dividend and append it to 49, then repeat: 495 / 649

Let's proceed to step 7:
The number 649 fits into 495 0 times, leaving a remainder of 495.
The next digit of our result is 0. 
Result so far: 3060.0
Subtracting 0 from 495 leaves us with 495.
Take the next digit (5) from the dividend and append it to 495, then repeat: 4955 / 649

Moving on to step 8:
649 goes into 4955 7 times with a remainder of 412.
Record the quotient 7 as the next digit in the result. 
Result so far: 30607.0
If we take 4543 away from 4955, we end up with 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

Let's proceed to step 9:
If we divide 4120 by 649, we get 6 and a remainder of 226.
Write down 6 as next digit of the result. 
Result so far: 30607.6
Deduct 3894 from 4120 and we're left with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Step 10:
If we divide 2260 by 649, we get 3 and a remainder of 313.
Use 3 as the next digit of our solution. 
Result so far: 30607.63
If we subtract 1947 from 2260, we get 313.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3130, and continue the process.

Step 11:
649 goes into 3130 4 times with a remainder of 534.
Put 4 as the next digit of the answer. 
Result so far: 30607.634
Subtracting 2596 from 3130 leaves us with 534.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5340, and continue the process.

On to step 12:
If we divide 5340 by 649, we get 8 and a remainder of 148.
Put 8 as the next digit of the answer. 
Result so far: 30607.6348
If we subtract 5192 from 5340, we get 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Advancing to step 13:
1480 divided by 649 is 2 with a remainder of 182.
The number 2 becomes the next digit in our result. 
Result so far: 30607.63482
Deduct 1298 from 1480 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.

Let's proceed to step 14:
649 goes into 1820 2 times with a remainder of 522.
Write down 2 as next digit of the result. 
Result so far: 30607.634822
Subtract 1298 from 1820 to get 522.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5220, and continue the process.

After the division, we end up with 30607.634822 and a remainder of 5.22e-05.