We're dividing 66389701 by 457 
We want to divide 66389701 by 457.

Moving on to step 1:
If we divide 6 by 457, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 457

Moving on to step 2:
457 can be fit into 66 0 times, resulting in a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 66 and we're left with 66.
Bring next digit (3) of the dividend behind the 66 and repeat the process: 663 / 457

Moving on to step 3:
663 divided by 457 is 1 with a remainder of 206.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 457 from 663 leaves us with 206.
Fetch the next digit (8) from the dividend, attach it to 206 and continue: 2068 / 457

Advancing to step 4:
If we divide 2068 by 457, we get 4 and a remainder of 240.
The next digit of our result is 4. 
Result so far: 14.0
If we subtract 1828 from 2068, we get 240.
Bring next digit (9) of the dividend behind the 240 and repeat the process: 2409 / 457

Moving on to step 5:
If we divide 2409 by 457, we get 5 and a remainder of 124.
Use 5 as the next digit of our solution. 
Result so far: 145.0
Deduct 2285 from 2409 and we're left with 124.
Include the next digit (7) from the dividend after 124, then repeat: 1247 / 457

Step 6:
1247 divided by 457 is 2 with a remainder of 333.
The number 2 becomes the next digit in our result. 
Result so far: 1452.0
Subtracting 914 from 1247 leaves us with 333.
Include the next digit (0) from the dividend after 333, then repeat: 3330 / 457

Let's proceed to step 7:
457 goes into 3330 7 times with a remainder of 131.
Write down 7 as next digit of the result. 
Result so far: 14527.0
The remainder is 131 after subtracting 3199 from 3330.
Include the next digit (1) from the dividend after 131, then repeat: 1311 / 457

Let's proceed to step 8:
457 can be fit into 1311 2 times, resulting in a remainder of 397.
The next digit of our result is 2. 
Result so far: 145272.0
The remainder is 397 after subtracting 914 from 1311.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3970, and continue the process.

Let's proceed to step 9:
When dividing 3970 by 457, we get 8 with a remainder of 314.
Put 8 as the next digit of the answer. 
Result so far: 145272.8
Deduct 3656 from 3970 and we're left with 314.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

On to step 10:
When dividing 3140 by 457, we get 6 with a remainder of 398.
Use 6 as the next digit of our solution. 
Result so far: 145272.86
Deduct 2742 from 3140 and we're left with 398.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3980, and continue the process.

Let's proceed to step 11:
3980 divided by 457 is 8 with a remainder of 324.
The number 8 becomes the next digit in our result. 
Result so far: 145272.868
Subtract 3656 from 3980 to get 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Let's proceed to step 12:
457 goes into 3240 7 times with a remainder of 41.
The next digit of our result is 7. 
Result so far: 145272.8687
If we subtract 3199 from 3240, we get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Let's proceed to step 13:
If we divide 410 by 457, we get 0 and a remainder of 410.
Write down 0 as next digit of the result. 
Result so far: 145272.8687
Subtract 0 from 410 to get 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Let's proceed to step 14:
The number 457 fits into 4100 8 times, leaving a remainder of 444.
Use 8 as the next digit of our solution. 
Result so far: 145272.868708
The remainder is 444 after subtracting 3656 from 4100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

Moving on to step 15:
If we divide 4440 by 457, we get 9 and a remainder of 327.
Use 9 as the next digit of our solution. 
Result so far: 145272.8687089
Deduct 4113 from 4440 and we're left with 327.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3270, and continue the process.

Moving on to step 16:
457 goes into 3270 7 times with a remainder of 71.
Write down 7 as next digit of the result. 
Result so far: 145272.86870897
Subtract 3199 from 3270 to get 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

The final outcome is 145272.86870897, with a leftover of 7.1e-08.