12004100 ÷ 641 
We're looking to find how many times 641 goes into 12004100.

Step 1:
If we divide 1 by 641, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 641

Let's proceed to step 2:
12 divided by 641 is 0 with a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Bring next digit (0) of the dividend behind the 12 and repeat the process: 120 / 641

Let's proceed to step 3:
120 divided by 641 is 0 with a remainder of 120.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 120, we end up with 120.
Fetch the next digit (0) from the dividend, attach it to 120 and continue: 1200 / 641

Advancing to step 4:
641 can be fit into 1200 1 times, resulting in a remainder of 559.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 641 from 1200 and we're left with 559.
Bring next digit (4) of the dividend behind the 559 and repeat the process: 5594 / 641

Let's proceed to step 5:
The number 641 fits into 5594 8 times, leaving a remainder of 466.
Write down 8 as next digit of the result. 
Result so far: 18.0
The remainder is 466 after subtracting 5128 from 5594.
Bring next digit (1) of the dividend behind the 466 and repeat the process: 4661 / 641

Moving on to step 6:
4661 divided by 641 is 7 with a remainder of 174.
The next digit of our result is 7. 
Result so far: 187.0
Subtracting 4487 from 4661 leaves us with 174.
Grab the next digit (0) from the dividend, add it to 174, then carry on: 1740 / 641

Step 7:
641 can be fit into 1740 2 times, resulting in a remainder of 458.
Record the quotient 2 as the next digit in the result. 
Result so far: 1872.0
Subtracting 1282 from 1740 leaves us with 458.
Append the next digit (0) from the dividend to 458 and continue with: 4580 / 641

Step 8:
641 can be fit into 4580 7 times, resulting in a remainder of 93.
The next digit of our result is 7. 
Result so far: 18727.0
The remainder is 93 after subtracting 4487 from 4580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Let's proceed to step 9:
If we divide 930 by 641, we get 1 and a remainder of 289.
The number 1 becomes the next digit in our result. 
Result so far: 18727.1
Subtracting 641 from 930 leaves us with 289.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2890, and continue the process.

Step 10:
641 goes into 2890 4 times with a remainder of 326.
The next digit of our result is 4. 
Result so far: 18727.14
Subtracting 2564 from 2890 leaves us with 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

Going ahead to step 11:
3260 divided by 641 is 5 with a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 18727.145
Subtracting 3205 from 3260 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Moving on to step 12:
550 divided by 641 is 0 with a remainder of 550.
Put 0 as the next digit of the answer. 
Result so far: 18727.145
Subtract 0 from 550 to get 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Step 13:
5500 divided by 641 is 8 with a remainder of 372.
Record the quotient 8 as the next digit in the result. 
Result so far: 18727.14508
If we take 5128 away from 5500, we end up with 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Advancing to step 14:
If we divide 3720 by 641, we get 5 and a remainder of 515.
Record the quotient 5 as the next digit in the result. 
Result so far: 18727.145085
The remainder is 515 after subtracting 3205 from 3720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5150, and continue the process.

Let's proceed to step 15:
641 goes into 5150 8 times with a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 18727.1450858
Deduct 5128 from 5150 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 16:
220 divided by 641 is 0 with a remainder of 220.
Use 0 as the next digit of our solution. 
Result so far: 18727.1450858
The remainder is 220 after subtracting 0 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

After the division, we end up with 18727.1450858 and a remainder of 2.2e-07.