64721130 ÷ 802 
We want to figure out the number of times 64721130 can be divided by 802.

Let's proceed to step 1:
The number 802 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 802

Advancing to step 2:
64 divided by 802 is 0 with a remainder of 64.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Append the next digit (7) from the dividend to 64 and continue with: 647 / 802

Step 3:
When dividing 647 by 802, we get 0 with a remainder of 647.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 647 to get 647.
Bring next digit (2) of the dividend behind the 647 and repeat the process: 6472 / 802

On to step 4:
802 can be fit into 6472 8 times, resulting in a remainder of 56.
Put 8 as the next digit of the answer. 
Result so far: 8.0
The remainder is 56 after subtracting 6416 from 6472.
Take the next digit (1) from the dividend and append it to 56, then repeat: 561 / 802

Let's proceed to step 5:
The number 802 fits into 561 0 times, leaving a remainder of 561.
The next digit of our result is 0. 
Result so far: 80.0
The remainder is 561 after subtracting 0 from 561.
Take the next digit (1) from the dividend and append it to 561, then repeat: 5611 / 802

Moving on to step 6:
5611 divided by 802 is 6 with a remainder of 799.
Use 6 as the next digit of our solution. 
Result so far: 806.0
If we take 4812 away from 5611, we end up with 799.
Fetch the next digit (3) from the dividend, attach it to 799 and continue: 7993 / 802

Moving on to step 7:
If we divide 7993 by 802, we get 9 and a remainder of 775.
The number 9 becomes the next digit in our result. 
Result so far: 8069.0
Subtract 7218 from 7993 to get 775.
Append the next digit (0) from the dividend to 775 and continue with: 7750 / 802

Step 8:
7750 divided by 802 is 9 with a remainder of 532.
The next digit of our result is 9. 
Result so far: 80699.0
If we subtract 7218 from 7750, we get 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

Step 9:
The number 802 fits into 5320 6 times, leaving a remainder of 508.
The next digit of our result is 6. 
Result so far: 80699.6
If we take 4812 away from 5320, we end up with 508.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5080, and continue the process.

On to step 10:
802 goes into 5080 6 times with a remainder of 268.
The next digit of our result is 6. 
Result so far: 80699.66
If we take 4812 away from 5080, we end up with 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

In conclusion, the division gives 80699.66 with a balance of 0.268.