64686447 divided by 457 
We're looking to find how many times 457 goes into 64686447.

Advancing to step 1:
457 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 457

Going ahead to step 2:
When dividing 64 by 457, we get 0 with a remainder of 64.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Grab the next digit (6) from the dividend, add it to 64, then carry on: 646 / 457

Advancing to step 3:
The number 457 fits into 646 1 times, leaving a remainder of 189.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 457 from 646, we get 189.
Append the next digit (8) from the dividend to 189 and continue with: 1898 / 457

On to step 4:
457 can be fit into 1898 4 times, resulting in a remainder of 70.
Use 4 as the next digit of our solution. 
Result so far: 14.0
The remainder is 70 after subtracting 1828 from 1898.
Append the next digit (6) from the dividend to 70 and continue with: 706 / 457

Let's proceed to step 5:
The number 457 fits into 706 1 times, leaving a remainder of 249.
Record the quotient 1 as the next digit in the result. 
Result so far: 141.0
If we subtract 457 from 706, we get 249.
Grab the next digit (4) from the dividend, add it to 249, then carry on: 2494 / 457

Moving on to step 6:
The number 457 fits into 2494 5 times, leaving a remainder of 209.
Put 5 as the next digit of the answer. 
Result so far: 1415.0
If we take 2285 away from 2494, we end up with 209.
Include the next digit (4) from the dividend after 209, then repeat: 2094 / 457

Let's proceed to step 7:
457 can be fit into 2094 4 times, resulting in a remainder of 266.
The number 4 becomes the next digit in our result. 
Result so far: 14154.0
If we subtract 1828 from 2094, we get 266.
Include the next digit (7) from the dividend after 266, then repeat: 2667 / 457

Going ahead to step 8:
457 goes into 2667 5 times with a remainder of 382.
Put 5 as the next digit of the answer. 
Result so far: 141545.0
If we subtract 2285 from 2667, we get 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

Let's proceed to step 9:
If we divide 3820 by 457, we get 8 and a remainder of 164.
Record the quotient 8 as the next digit in the result. 
Result so far: 141545.8
Subtract 3656 from 3820 to get 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Going ahead to step 10:
If we divide 1640 by 457, we get 3 and a remainder of 269.
The next digit of our result is 3. 
Result so far: 141545.83
If we subtract 1371 from 1640, we get 269.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2690, and continue the process.

Moving on to step 11:
2690 divided by 457 is 5 with a remainder of 405.
The next digit of our result is 5. 
Result so far: 141545.835
Subtract 2285 from 2690 to get 405.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4050, and continue the process.

Let's proceed to step 12:
The number 457 fits into 4050 8 times, leaving a remainder of 394.
The number 8 becomes the next digit in our result. 
Result so far: 141545.8358
Deduct 3656 from 4050 and we're left with 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Let's proceed to step 13:
If we divide 3940 by 457, we get 8 and a remainder of 284.
Record the quotient 8 as the next digit in the result. 
Result so far: 141545.83588
Deduct 3656 from 3940 and we're left with 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

The final outcome is 141545.83588, with a leftover of 0.000284.