64812539 divided by 757 
Our goal is to divide 64812539 by 757.

On to step 1:
The number 757 fits into 6 0 times, leaving 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.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 757

Moving on to step 2:
The number 757 fits into 64 0 times, leaving a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 64 leaves us with 64.
Grab the next digit (8) from the dividend, add it to 64, then carry on: 648 / 757

Advancing to step 3:
757 goes into 648 0 times with a remainder of 648.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 648, we end up with 648.
Bring next digit (1) of the dividend behind the 648 and repeat the process: 6481 / 757

Moving on to step 4:
If we divide 6481 by 757, we get 8 and a remainder of 425.
Use 8 as the next digit of our solution. 
Result so far: 8.0
The remainder is 425 after subtracting 6056 from 6481.
Bring next digit (2) of the dividend behind the 425 and repeat the process: 4252 / 757

On to step 5:
If we divide 4252 by 757, we get 5 and a remainder of 467.
The next digit of our result is 5. 
Result so far: 85.0
Subtract 3785 from 4252 to get 467.
Grab the next digit (5) from the dividend, add it to 467, then carry on: 4675 / 757

Going ahead to step 6:
If we divide 4675 by 757, we get 6 and a remainder of 133.
Put 6 as the next digit of the answer. 
Result so far: 856.0
Subtracting 4542 from 4675 leaves us with 133.
Append the next digit (3) from the dividend to 133 and continue with: 1333 / 757

Going ahead to step 7:
1333 divided by 757 is 1 with a remainder of 576.
The number 1 becomes the next digit in our result. 
Result so far: 8561.0
Subtract 757 from 1333 to get 576.
Grab the next digit (9) from the dividend, add it to 576, then carry on: 5769 / 757

Step 8:
757 goes into 5769 7 times with a remainder of 470.
Use 7 as the next digit of our solution. 
Result so far: 85617.0
If we take 5299 away from 5769, we end up with 470.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4700, and continue the process.

On to step 9:
If we divide 4700 by 757, we get 6 and a remainder of 158.
The next digit of our result is 6. 
Result so far: 85617.6
Deduct 4542 from 4700 and we're left with 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Step 10:
If we divide 1580 by 757, we get 2 and a remainder of 66.
The number 2 becomes the next digit in our result. 
Result so far: 85617.62
If we subtract 1514 from 1580, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 11:
The number 757 fits into 660 0 times, leaving a remainder of 660.
Put 0 as the next digit of the answer. 
Result so far: 85617.62
If we subtract 0 from 660, we get 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6600, and continue the process.

Moving on to step 12:
The number 757 fits into 6600 8 times, leaving a remainder of 544.
Use 8 as the next digit of our solution. 
Result so far: 85617.6208
Subtracting 6056 from 6600 leaves us with 544.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

Let's proceed to step 13:
5440 divided by 757 is 7 with a remainder of 141.
Record the quotient 7 as the next digit in the result. 
Result so far: 85617.62087
Subtracting 5299 from 5440 leaves us with 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

On to step 14:
If we divide 1410 by 757, we get 1 and a remainder of 653.
Use 1 as the next digit of our solution. 
Result so far: 85617.620871
If we take 757 away from 1410, we end up with 653.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6530, and continue the process.

Step 15:
757 goes into 6530 8 times with a remainder of 474.
Use 8 as the next digit of our solution. 
Result so far: 85617.6208718
Deduct 6056 from 6530 and we're left with 474.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

Moving on to step 16:
When dividing 4740 by 757, we get 6 with a remainder of 198.
Record the quotient 6 as the next digit in the result. 
Result so far: 85617.62087186
If we take 4542 away from 4740, we end up with 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

The final outcome is 85617.62087186, with a leftover of 1.98e-07.