We divide 10404427 by 641
We're looking to find how many times 641 goes into 10404427.

Step 1:
When dividing 1 by 641, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 641

Advancing to step 2:
10 divided by 641 is 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 10, we end up with 10.
Append the next digit (4) from the dividend to 10 and continue with: 104 / 641

Advancing to step 3:
641 can be fit into 104 0 times, resulting in a remainder of 104.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 104, we end up with 104.
Append the next digit (0) from the dividend to 104 and continue with: 1040 / 641

Advancing to step 4:
641 goes into 1040 1 times with a remainder of 399.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 641 from 1040, we get 399.
Bring next digit (4) of the dividend behind the 399 and repeat the process: 3994 / 641

Advancing to step 5:
3994 divided by 641 is 6 with a remainder of 148.
Write down 6 as next digit of the result. 
Result so far: 16.0
If we take 3846 away from 3994, we end up with 148.
Take the next digit (4) from the dividend and append it to 148, then repeat: 1484 / 641

Step 6:
641 can be fit into 1484 2 times, resulting in a remainder of 202.
Write down 2 as next digit of the result. 
Result so far: 162.0
The remainder is 202 after subtracting 1282 from 1484.
Include the next digit (2) from the dividend after 202, then repeat: 2022 / 641

Moving on to step 7:
641 goes into 2022 3 times with a remainder of 99.
Use 3 as the next digit of our solution. 
Result so far: 1623.0
Subtract 1923 from 2022 to get 99.
Append the next digit (7) from the dividend to 99 and continue with: 997 / 641

Advancing to step 8:
If we divide 997 by 641, we get 1 and a remainder of 356.
The number 1 becomes the next digit in our result. 
Result so far: 16231.0
Subtracting 641 from 997 leaves us with 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

Going ahead to step 9:
The number 641 fits into 3560 5 times, leaving a remainder of 355.
Put 5 as the next digit of the answer. 
Result so far: 16231.5
The remainder is 355 after subtracting 3205 from 3560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3550, and continue the process.

Going ahead to step 10:
641 goes into 3550 5 times with a remainder of 345.
Write down 5 as next digit of the result. 
Result so far: 16231.55
Subtracting 3205 from 3550 leaves us with 345.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3450, and continue the process.

The final result is 16231.55 with a remainder of 0.345.