64249258 divided by 456 
Our goal is to divide 64249258 by 456.

Step 1:
6 divided by 456 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 456

Step 2:
When dividing 64 by 456, we get 0 with a remainder of 64.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 64, we get 64.
Bring next digit (2) of the dividend behind the 64 and repeat the process: 642 / 456

Going ahead to step 3:
456 goes into 642 1 times with a remainder of 186.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 456 from 642 to get 186.
Append the next digit (4) from the dividend to 186 and continue with: 1864 / 456

Let's proceed to step 4:
When dividing 1864 by 456, we get 4 with a remainder of 40.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Subtracting 1824 from 1864 leaves us with 40.
Bring next digit (9) of the dividend behind the 40 and repeat the process: 409 / 456

Moving on to step 5:
409 divided by 456 is 0 with a remainder of 409.
Record the quotient 0 as the next digit in the result. 
Result so far: 140.0
Subtracting 0 from 409 leaves us with 409.
Grab the next digit (2) from the dividend, add it to 409, then carry on: 4092 / 456

Going ahead to step 6:
If we divide 4092 by 456, we get 8 and a remainder of 444.
Record the quotient 8 as the next digit in the result. 
Result so far: 1408.0
The remainder is 444 after subtracting 3648 from 4092.
Append the next digit (5) from the dividend to 444 and continue with: 4445 / 456

Moving on to step 7:
If we divide 4445 by 456, we get 9 and a remainder of 341.
Use 9 as the next digit of our solution. 
Result so far: 14089.0
If we take 4104 away from 4445, we end up with 341.
Fetch the next digit (8) from the dividend, attach it to 341 and continue: 3418 / 456

Let's proceed to step 8:
When dividing 3418 by 456, we get 7 with a remainder of 226.
The next digit of our result is 7. 
Result so far: 140897.0
The remainder is 226 after subtracting 3192 from 3418.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Step 9:
The number 456 fits into 2260 4 times, leaving a remainder of 436.
The number 4 becomes the next digit in our result. 
Result so far: 140897.4
If we subtract 1824 from 2260, we get 436.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4360, and continue the process.

On to step 10:
If we divide 4360 by 456, we get 9 and a remainder of 256.
Record the quotient 9 as the next digit in the result. 
Result so far: 140897.49
If we subtract 4104 from 4360, we get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Advancing to step 11:
The number 456 fits into 2560 5 times, leaving a remainder of 280.
Use 5 as the next digit of our solution. 
Result so far: 140897.495
If we subtract 2280 from 2560, we get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Moving on to step 12:
456 goes into 2800 6 times with a remainder of 64.
Use 6 as the next digit of our solution. 
Result so far: 140897.4956
If we subtract 2736 from 2800, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 13:
If we divide 640 by 456, we get 1 and a remainder of 184.
Put 1 as the next digit of the answer. 
Result so far: 140897.49561
If we subtract 456 from 640, we get 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Advancing to step 14:
1840 divided by 456 is 4 with a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 140897.495614
If we subtract 1824 from 1840, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 15:
If we divide 160 by 456, we get 0 and a remainder of 160.
The next digit of our result is 0. 
Result so far: 140897.495614
If we take 0 away from 160, we end up with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Let's proceed to step 16:
When dividing 1600 by 456, we get 3 with a remainder of 232.
The number 3 becomes the next digit in our result. 
Result so far: 140897.49561403
If we take 1368 away from 1600, we end up with 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

The final outcome is 140897.49561403, with a leftover of 2.32e-07.