641131 divided by 12 
Let's see how many times 12 fits into 641131.

Advancing to step 1:
12 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 12

Let's proceed to step 2:
The number 12 fits into 64 5 times, leaving a remainder of 4.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtracting 60 from 64 leaves us with 4.
Grab the next digit (1) from the dividend, add it to 4, then carry on: 41 / 12

Advancing to step 3:
41 divided by 12 is 3 with a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 53.0
Subtract 36 from 41 to get 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 12

Let's proceed to step 4:
When dividing 51 by 12, we get 4 with a remainder of 3.
Record the quotient 4 as the next digit in the result. 
Result so far: 534.0
Subtracting 48 from 51 leaves us with 3.
Grab the next digit (3) from the dividend, add it to 3, then carry on: 33 / 12

Going ahead to step 5:
The number 12 fits into 33 2 times, leaving a remainder of 9.
The next digit of our result is 2. 
Result so far: 5342.0
If we subtract 24 from 33, we get 9.
Fetch the next digit (1) from the dividend, attach it to 9 and continue: 91 / 12

Going ahead to step 6:
If we divide 91 by 12, we get 7 and a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 53427.0
The remainder is 7 after subtracting 84 from 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 7:
12 goes into 70 5 times with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 53427.5
Subtract 60 from 70 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
When dividing 100 by 12, we get 8 with a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 53427.58
Deduct 96 from 100 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 9:
When dividing 40 by 12, we get 3 with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 53427.583
If we take 36 away from 40, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 10:
The number 12 fits into 40 3 times, leaving a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 53427.5833
If we subtract 36 from 40, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final outcome is 53427.5833, with a leftover of 4e-05.