64574286 ÷ 816 
We want to figure out the number of times 64574286 can be divided by 816.

Moving on to step 1:
816 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 816

Advancing to step 2:
816 can be fit into 64 0 times, resulting in a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 64 to get 64.
Bring next digit (5) of the dividend behind the 64 and repeat the process: 645 / 816

Moving on to step 3:
816 goes into 645 0 times with a remainder of 645.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 645 to get 645.
Grab the next digit (7) from the dividend, add it to 645, then carry on: 6457 / 816

Let's proceed to step 4:
The number 816 fits into 6457 7 times, leaving a remainder of 745.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtracting 5712 from 6457 leaves us with 745.
Take the next digit (4) from the dividend and append it to 745, then repeat: 7454 / 816

On to step 5:
7454 divided by 816 is 9 with a remainder of 110.
The next digit of our result is 9. 
Result so far: 79.0
The remainder is 110 after subtracting 7344 from 7454.
Take the next digit (2) from the dividend and append it to 110, then repeat: 1102 / 816

Step 6:
1102 divided by 816 is 1 with a remainder of 286.
The next digit of our result is 1. 
Result so far: 791.0
If we subtract 816 from 1102, we get 286.
Append the next digit (8) from the dividend to 286 and continue with: 2868 / 816

On to step 7:
If we divide 2868 by 816, we get 3 and a remainder of 420.
The number 3 becomes the next digit in our result. 
Result so far: 7913.0
Subtract 2448 from 2868 to get 420.
Include the next digit (6) from the dividend after 420, then repeat: 4206 / 816

Advancing to step 8:
The number 816 fits into 4206 5 times, leaving a remainder of 126.
Write down 5 as next digit of the result. 
Result so far: 79135.0
Deduct 4080 from 4206 and we're left with 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Let's proceed to step 9:
The number 816 fits into 1260 1 times, leaving a remainder of 444.
The next digit of our result is 1. 
Result so far: 79135.1
Subtract 816 from 1260 to get 444.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

On to step 10:
If we divide 4440 by 816, we get 5 and a remainder of 360.
The number 5 becomes the next digit in our result. 
Result so far: 79135.15
Subtracting 4080 from 4440 leaves us with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Going ahead to step 11:
816 goes into 3600 4 times with a remainder of 336.
Write down 4 as next digit of the result. 
Result so far: 79135.154
Deduct 3264 from 3600 and we're left with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Advancing to step 12:
816 goes into 3360 4 times with a remainder of 96.
Put 4 as the next digit of the answer. 
Result so far: 79135.1544
The remainder is 96 after subtracting 3264 from 3360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

In conclusion, the division gives 79135.1544 with a balance of 0.00096.