We divide 453717 by 12
We want to figure out the number of times 453717 can be divided by 12.

Let's proceed to step 1:
When dividing 4 by 12, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 12

Step 2:
The number 12 fits into 45 3 times, leaving a remainder of 9.
The next digit of our result is 3. 
Result so far: 3.0
Subtracting 36 from 45 leaves us with 9.
Include the next digit (3) from the dividend after 9, then repeat: 93 / 12

Moving on to step 3:
12 goes into 93 7 times with a remainder of 9.
Use 7 as the next digit of our solution. 
Result so far: 37.0
Deduct 84 from 93 and we're left with 9.
Append the next digit (7) from the dividend to 9 and continue with: 97 / 12

Moving on to step 4:
The number 12 fits into 97 8 times, leaving a remainder of 1.
Record the quotient 8 as the next digit in the result. 
Result so far: 378.0
Deduct 96 from 97 and we're left with 1.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 12

Let's proceed to step 5:
11 divided by 12 is 0 with a remainder of 11.
Use 0 as the next digit of our solution. 
Result so far: 3780.0
Subtracting 0 from 11 leaves us with 11.
Fetch the next digit (7) from the dividend, attach it to 11 and continue: 117 / 12

Going ahead to step 6:
If we divide 117 by 12, we get 9 and a remainder of 9.
Put 9 as the next digit of the answer. 
Result so far: 37809.0
Subtract 108 from 117 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 7:
When dividing 90 by 12, we get 7 with a remainder of 6.
Put 7 as the next digit of the answer. 
Result so far: 37809.7
The remainder is 6 after subtracting 84 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 8:
60 divided by 12 is 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 37809.75
Subtracting 60 from 60 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
The number 12 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 37809.75
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
When dividing 0 by 12, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 37809.75
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 37809.75, with a leftover of 0.0.