We divide 64221191 by 810
We're looking to find how many times 810 goes into 64221191.

On to step 1:
If we divide 6 by 810, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 810

On to step 2:
810 can be fit into 64 0 times, resulting in a remainder of 64.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 64 and we're left with 64.
Grab the next digit (2) from the dividend, add it to 64, then carry on: 642 / 810

Moving on to step 3:
If we divide 642 by 810, we get 0 and a remainder of 642.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 642 leaves us with 642.
Fetch the next digit (2) from the dividend, attach it to 642 and continue: 6422 / 810

Moving on to step 4:
6422 divided by 810 is 7 with a remainder of 752.
Write down 7 as next digit of the result. 
Result so far: 7.0
The remainder is 752 after subtracting 5670 from 6422.
Grab the next digit (1) from the dividend, add it to 752, then carry on: 7521 / 810

Going ahead to step 5:
810 can be fit into 7521 9 times, resulting in a remainder of 231.
Write down 9 as next digit of the result. 
Result so far: 79.0
If we take 7290 away from 7521, we end up with 231.
Take the next digit (1) from the dividend and append it to 231, then repeat: 2311 / 810

On to step 6:
2311 divided by 810 is 2 with a remainder of 691.
Write down 2 as next digit of the result. 
Result so far: 792.0
If we subtract 1620 from 2311, we get 691.
Bring next digit (9) of the dividend behind the 691 and repeat the process: 6919 / 810

Step 7:
6919 divided by 810 is 8 with a remainder of 439.
Use 8 as the next digit of our solution. 
Result so far: 7928.0
If we subtract 6480 from 6919, we get 439.
Include the next digit (1) from the dividend after 439, then repeat: 4391 / 810

Going ahead to step 8:
810 can be fit into 4391 5 times, resulting in a remainder of 341.
Use 5 as the next digit of our solution. 
Result so far: 79285.0
If we take 4050 away from 4391, we end up with 341.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3410, and continue the process.

Step 9:
If we divide 3410 by 810, we get 4 and a remainder of 170.
Write down 4 as next digit of the result. 
Result so far: 79285.4
Deduct 3240 from 3410 and we're left with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Advancing to step 10:
If we divide 1700 by 810, we get 2 and a remainder of 80.
Put 2 as the next digit of the answer. 
Result so far: 79285.42
Subtract 1620 from 1700 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 11:
810 can be fit into 800 0 times, resulting in a remainder of 800.
Use 0 as the next digit of our solution. 
Result so far: 79285.42
The remainder is 800 after subtracting 0 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

Step 12:
8000 divided by 810 is 9 with a remainder of 710.
Record the quotient 9 as the next digit in the result. 
Result so far: 79285.4209
If we take 7290 away from 8000, we end up with 710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7100, and continue the process.

On to step 13:
If we divide 7100 by 810, we get 8 and a remainder of 620.
Put 8 as the next digit of the answer. 
Result so far: 79285.42098
If we take 6480 away from 7100, we end up with 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Advancing to step 14:
When dividing 6200 by 810, we get 7 with a remainder of 530.
Record the quotient 7 as the next digit in the result. 
Result so far: 79285.420987
The remainder is 530 after subtracting 5670 from 6200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

On to step 15:
5300 divided by 810 is 6 with a remainder of 440.
Put 6 as the next digit of the answer. 
Result so far: 79285.4209876
If we subtract 4860 from 5300, we get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

On to step 16:
The number 810 fits into 4400 5 times, leaving a remainder of 350.
The next digit of our result is 5. 
Result so far: 79285.42098765
Subtracting 4050 from 4400 leaves us with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

In conclusion, the division gives 79285.42098765 with a balance of 3.5e-07.