Let's divide 12810026 by 891
We want to figure out the number of times 12810026 can be divided by 891.

Step 1:
1 divided by 891 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 891

Going ahead to step 2:
If we divide 12 by 891, we get 0 and a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Include the next digit (8) from the dividend after 12, then repeat: 128 / 891

Let's proceed to step 3:
If we divide 128 by 891, we get 0 and a remainder of 128.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 128 and we're left with 128.
Append the next digit (1) from the dividend to 128 and continue with: 1281 / 891

Moving on to step 4:
891 goes into 1281 1 times with a remainder of 390.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 891 from 1281 and we're left with 390.
Append the next digit (0) from the dividend to 390 and continue with: 3900 / 891

Advancing to step 5:
The number 891 fits into 3900 4 times, leaving a remainder of 336.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
Deduct 3564 from 3900 and we're left with 336.
Fetch the next digit (0) from the dividend, attach it to 336 and continue: 3360 / 891

Step 6:
When dividing 3360 by 891, we get 3 with a remainder of 687.
Record the quotient 3 as the next digit in the result. 
Result so far: 143.0
Subtract 2673 from 3360 to get 687.
Include the next digit (2) from the dividend after 687, then repeat: 6872 / 891

Let's proceed to step 7:
If we divide 6872 by 891, we get 7 and a remainder of 635.
Record the quotient 7 as the next digit in the result. 
Result so far: 1437.0
Deduct 6237 from 6872 and we're left with 635.
Take the next digit (6) from the dividend and append it to 635, then repeat: 6356 / 891

Advancing to step 8:
If we divide 6356 by 891, we get 7 and a remainder of 119.
Record the quotient 7 as the next digit in the result. 
Result so far: 14377.0
If we subtract 6237 from 6356, we get 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Let's proceed to step 9:
If we divide 1190 by 891, we get 1 and a remainder of 299.
Put 1 as the next digit of the answer. 
Result so far: 14377.1
Subtracting 891 from 1190 leaves us with 299.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2990, and continue the process.

Step 10:
891 can be fit into 2990 3 times, resulting in a remainder of 317.
Write down 3 as next digit of the result. 
Result so far: 14377.13
Deduct 2673 from 2990 and we're left with 317.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3170, and continue the process.

Moving on to step 11:
891 can be fit into 3170 3 times, resulting in a remainder of 497.
Use 3 as the next digit of our solution. 
Result so far: 14377.133
Deduct 2673 from 3170 and we're left with 497.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4970, and continue the process.

The quotient of the division is 14377.133, and the remainder is 0.0497.