66964951 divided by 763 
We want to divide 66964951 by 763.

Advancing to step 1:
When dividing 6 by 763, we get 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 763

Going ahead to step 2:
If we divide 66 by 763, we get 0 and a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 66 to get 66.
Include the next digit (9) from the dividend after 66, then repeat: 669 / 763

On to step 3:
669 divided by 763 is 0 with a remainder of 669.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 669 and we're left with 669.
Take the next digit (6) from the dividend and append it to 669, then repeat: 6696 / 763

On to step 4:
763 can be fit into 6696 8 times, resulting in a remainder of 592.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we take 6104 away from 6696, we end up with 592.
Grab the next digit (4) from the dividend, add it to 592, then carry on: 5924 / 763

Moving on to step 5:
763 can be fit into 5924 7 times, resulting in a remainder of 583.
Write down 7 as next digit of the result. 
Result so far: 87.0
If we take 5341 away from 5924, we end up with 583.
Include the next digit (9) from the dividend after 583, then repeat: 5839 / 763

Going ahead to step 6:
If we divide 5839 by 763, we get 7 and a remainder of 498.
Record the quotient 7 as the next digit in the result. 
Result so far: 877.0
Deduct 5341 from 5839 and we're left with 498.
Include the next digit (5) from the dividend after 498, then repeat: 4985 / 763

Let's proceed to step 7:
The number 763 fits into 4985 6 times, leaving a remainder of 407.
The number 6 becomes the next digit in our result. 
Result so far: 8776.0
If we take 4578 away from 4985, we end up with 407.
Append the next digit (1) from the dividend to 407 and continue with: 4071 / 763

Step 8:
If we divide 4071 by 763, we get 5 and a remainder of 256.
The next digit of our result is 5. 
Result so far: 87765.0
Subtract 3815 from 4071 to 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.

Step 9:
2560 divided by 763 is 3 with a remainder of 271.
Use 3 as the next digit of our solution. 
Result so far: 87765.3
Deduct 2289 from 2560 and we're left with 271.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2710, and continue the process.

On to step 10:
The number 763 fits into 2710 3 times, leaving a remainder of 421.
Write down 3 as next digit of the result. 
Result so far: 87765.33
Subtracting 2289 from 2710 leaves us with 421.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4210, and continue the process.

In conclusion, the division gives 87765.33 with a balance of 0.421.