10261170 divided by 810 
Let's see how many times 810 fits into 10261170.

On to step 1:
810 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Bring next digit (0) of the dividend behind the 1 and repeat the process: 10 / 810

Step 2:
If we divide 10 by 810, we get 0 and a remainder of 10.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 10, we end up with 10.
Include the next digit (2) from the dividend after 10, then repeat: 102 / 810

Let's proceed to step 3:
If we divide 102 by 810, we get 0 and a remainder of 102.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 102, we end up with 102.
Include the next digit (6) from the dividend after 102, then repeat: 1026 / 810

Step 4:
810 goes into 1026 1 times with a remainder of 216.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 810 away from 1026, we end up with 216.
Take the next digit (1) from the dividend and append it to 216, then repeat: 2161 / 810

Advancing to step 5:
The number 810 fits into 2161 2 times, leaving a remainder of 541.
Write down 2 as next digit of the result. 
Result so far: 12.0
The remainder is 541 after subtracting 1620 from 2161.
Include the next digit (1) from the dividend after 541, then repeat: 5411 / 810

Step 6:
When dividing 5411 by 810, we get 6 with a remainder of 551.
The next digit of our result is 6. 
Result so far: 126.0
If we take 4860 away from 5411, we end up with 551.
Include the next digit (7) from the dividend after 551, then repeat: 5517 / 810

Moving on to step 7:
5517 divided by 810 is 6 with a remainder of 657.
Put 6 as the next digit of the answer. 
Result so far: 1266.0
Subtract 4860 from 5517 to get 657.
Include the next digit (0) from the dividend after 657, then repeat: 6570 / 810

Let's proceed to step 8:
When dividing 6570 by 810, we get 8 with a remainder of 90.
The number 8 becomes the next digit in our result. 
Result so far: 12668.0
If we subtract 6480 from 6570, we get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Moving on to step 9:
810 can be fit into 900 1 times, resulting in a remainder of 90.
The next digit of our result is 1. 
Result so far: 12668.1
Subtract 810 from 900 to get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

On to step 10:
If we divide 900 by 810, we get 1 and a remainder of 90.
The number 1 becomes the next digit in our result. 
Result so far: 12668.11
If we take 810 away from 900, we end up with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

The final result is 12668.11 with a remainder of 0.09.