12641238 ÷ 618 
We want to figure out the number of times 12641238 can be divided by 618.

Let's proceed to step 1:
If we divide 1 by 618, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 618

Moving on to step 2:
If we divide 12 by 618, we get 0 and a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Fetch the next digit (6) from the dividend, attach it to 12 and continue: 126 / 618

Moving on to step 3:
618 can be fit into 126 0 times, resulting in a remainder of 126.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 126 and we're left with 126.
Fetch the next digit (4) from the dividend, attach it to 126 and continue: 1264 / 618

Moving on to step 4:
The number 618 fits into 1264 2 times, leaving a remainder of 28.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 1236 from 1264 leaves us with 28.
Append the next digit (1) from the dividend to 28 and continue with: 281 / 618

Going ahead to step 5:
618 can be fit into 281 0 times, resulting in a remainder of 281.
Use 0 as the next digit of our solution. 
Result so far: 20.0
The remainder is 281 after subtracting 0 from 281.
Bring next digit (2) of the dividend behind the 281 and repeat the process: 2812 / 618

Going ahead to step 6:
When dividing 2812 by 618, we get 4 with a remainder of 340.
The number 4 becomes the next digit in our result. 
Result so far: 204.0
If we subtract 2472 from 2812, we get 340.
Bring next digit (3) of the dividend behind the 340 and repeat the process: 3403 / 618

Going ahead to step 7:
If we divide 3403 by 618, we get 5 and a remainder of 313.
The next digit of our result is 5. 
Result so far: 2045.0
Deduct 3090 from 3403 and we're left with 313.
Take the next digit (8) from the dividend and append it to 313, then repeat: 3138 / 618

Step 8:
3138 divided by 618 is 5 with a remainder of 48.
The number 5 becomes the next digit in our result. 
Result so far: 20455.0
If we take 3090 away from 3138, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 9:
The number 618 fits into 480 0 times, leaving a remainder of 480.
Use 0 as the next digit of our solution. 
Result so far: 20455.0
Deduct 0 from 480 and we're left with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Going ahead to step 10:
If we divide 4800 by 618, we get 7 and a remainder of 474.
The number 7 becomes the next digit in our result. 
Result so far: 20455.07
The remainder is 474 after subtracting 4326 from 4800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

Let's proceed to step 11:
If we divide 4740 by 618, we get 7 and a remainder of 414.
Write down 7 as next digit of the result. 
Result so far: 20455.077
Subtracting 4326 from 4740 leaves us with 414.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4140, and continue the process.

The final result is 20455.077 with a remainder of 0.0414.