We look at the division of 21106376 by 813 
We want to figure out the number of times 21106376 can be divided by 813.

Moving on to step 1:
If we divide 2 by 813, we get 0 and a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 813

Let's proceed to step 2:
21 divided by 813 is 0 with a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Bring next digit (1) of the dividend behind the 21 and repeat the process: 211 / 813

Moving on to step 3:
When dividing 211 by 813, we get 0 with a remainder of 211.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 211 and we're left with 211.
Take the next digit (0) from the dividend and append it to 211, then repeat: 2110 / 813

Let's proceed to step 4:
2110 divided by 813 is 2 with a remainder of 484.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 1626 from 2110 and we're left with 484.
Take the next digit (6) from the dividend and append it to 484, then repeat: 4846 / 813

Moving on to step 5:
813 goes into 4846 5 times with a remainder of 781.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
If we subtract 4065 from 4846, we get 781.
Bring next digit (3) of the dividend behind the 781 and repeat the process: 7813 / 813

Step 6:
The number 813 fits into 7813 9 times, leaving a remainder of 496.
Write down 9 as next digit of the result. 
Result so far: 259.0
Subtracting 7317 from 7813 leaves us with 496.
Fetch the next digit (7) from the dividend, attach it to 496 and continue: 4967 / 813

Step 7:
813 goes into 4967 6 times with a remainder of 89.
Write down 6 as next digit of the result. 
Result so far: 2596.0
The remainder is 89 after subtracting 4878 from 4967.
Grab the next digit (6) from the dividend, add it to 89, then carry on: 896 / 813

Let's proceed to step 8:
When dividing 896 by 813, we get 1 with a remainder of 83.
Record the quotient 1 as the next digit in the result. 
Result so far: 25961.0
Deduct 813 from 896 and we're left with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Going ahead to step 9:
When dividing 830 by 813, we get 1 with a remainder of 17.
The next digit of our result is 1. 
Result so far: 25961.1
Subtract 813 from 830 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 10:
The number 813 fits into 170 0 times, leaving a remainder of 170.
The number 0 becomes the next digit in our result. 
Result so far: 25961.1
Subtract 0 from 170 to get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

On to step 11:
The number 813 fits into 1700 2 times, leaving a remainder of 74.
Put 2 as the next digit of the answer. 
Result so far: 25961.102
Deduct 1626 from 1700 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

On to step 12:
813 can be fit into 740 0 times, resulting in a remainder of 740.
Put 0 as the next digit of the answer. 
Result so far: 25961.102
If we take 0 away from 740, we end up with 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7400, and continue the process.

On to step 13:
If we divide 7400 by 813, we get 9 and a remainder of 83.
The next digit of our result is 9. 
Result so far: 25961.10209
If we subtract 7317 from 7400, we get 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Advancing to step 14:
830 divided by 813 is 1 with a remainder of 17.
Use 1 as the next digit of our solution. 
Result so far: 25961.102091
The remainder is 17 after subtracting 813 from 830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 15:
813 goes into 170 0 times with a remainder of 170.
The next digit of our result is 0. 
Result so far: 25961.102091
If we take 0 away from 170, we end up 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.

Going ahead to step 16:
The number 813 fits into 1700 2 times, leaving a remainder of 74.
Use 2 as the next digit of our solution. 
Result so far: 25961.10209102
If we take 1626 away from 1700, we end up with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

The final result is 25961.10209102 with a remainder of 7.4e-08.