64803851 ÷ 505 
We're looking to find how many times 505 goes into 64803851.

Moving on to step 1:
505 goes into 6 0 times with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 505

Going ahead to step 2:
If we divide 64 by 505, we get 0 and a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 64 and we're left with 64.
Append the next digit (8) from the dividend to 64 and continue with: 648 / 505

Moving on to step 3:
When dividing 648 by 505, we get 1 with a remainder of 143.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 505 from 648 and we're left with 143.
Fetch the next digit (0) from the dividend, attach it to 143 and continue: 1430 / 505

Advancing to step 4:
If we divide 1430 by 505, we get 2 and a remainder of 420.
Write down 2 as next digit of the result. 
Result so far: 12.0
Subtracting 1010 from 1430 leaves us with 420.
Include the next digit (3) from the dividend after 420, then repeat: 4203 / 505

Let's proceed to step 5:
4203 divided by 505 is 8 with a remainder of 163.
Write down 8 as next digit of the result. 
Result so far: 128.0
If we subtract 4040 from 4203, we get 163.
Include the next digit (8) from the dividend after 163, then repeat: 1638 / 505

Step 6:
1638 divided by 505 is 3 with a remainder of 123.
The number 3 becomes the next digit in our result. 
Result so far: 1283.0
The remainder is 123 after subtracting 1515 from 1638.
Grab the next digit (5) from the dividend, add it to 123, then carry on: 1235 / 505

On to step 7:
505 can be fit into 1235 2 times, resulting in a remainder of 225.
Use 2 as the next digit of our solution. 
Result so far: 12832.0
Subtract 1010 from 1235 to get 225.
Append the next digit (1) from the dividend to 225 and continue with: 2251 / 505

Going ahead to step 8:
505 can be fit into 2251 4 times, resulting in a remainder of 231.
Record the quotient 4 as the next digit in the result. 
Result so far: 128324.0
If we take 2020 away from 2251, we end up with 231.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2310, and continue the process.

Step 9:
When dividing 2310 by 505, we get 4 with a remainder of 290.
Use 4 as the next digit of our solution. 
Result so far: 128324.4
Deduct 2020 from 2310 and we're left with 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Moving on to step 10:
505 goes into 2900 5 times with a remainder of 375.
Use 5 as the next digit of our solution. 
Result so far: 128324.45
If we subtract 2525 from 2900, we get 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Moving on to step 11:
The number 505 fits into 3750 7 times, leaving a remainder of 215.
The next digit of our result is 7. 
Result so far: 128324.457
Deduct 3535 from 3750 and we're left with 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Moving on to step 12:
When dividing 2150 by 505, we get 4 with a remainder of 130.
The next digit of our result is 4. 
Result so far: 128324.4574
Subtract 2020 from 2150 to get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Going ahead to step 13:
505 goes into 1300 2 times with a remainder of 290.
Put 2 as the next digit of the answer. 
Result so far: 128324.45742
Subtracting 1010 from 1300 leaves us with 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Advancing to step 14:
If we divide 2900 by 505, we get 5 and a remainder of 375.
Put 5 as the next digit of the answer. 
Result so far: 128324.457425
If we subtract 2525 from 2900, we get 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Going ahead to step 15:
505 goes into 3750 7 times with a remainder of 215.
The number 7 becomes the next digit in our result. 
Result so far: 128324.4574257
Subtracting 3535 from 3750 leaves us with 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Step 16:
2150 divided by 505 is 4 with a remainder of 130.
Write down 4 as next digit of the result. 
Result so far: 128324.45742574
If we take 2020 away from 2150, we end up with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

In conclusion, the division gives 128324.45742574 with a balance of 1.3e-07.