We look at the division of 21295358 by 910 
The aim is to understand the frequency of 910 in 21295358.

Let's proceed to step 1:
If we divide 2 by 910, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 910

On to step 2:
21 divided by 910 is 0 with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Bring next digit (2) of the dividend behind the 21 and repeat the process: 212 / 910

Advancing to step 3:
If we divide 212 by 910, we get 0 and a remainder of 212.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 212 leaves us with 212.
Fetch the next digit (9) from the dividend, attach it to 212 and continue: 2129 / 910

Moving on to step 4:
910 goes into 2129 2 times with a remainder of 309.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 1820 from 2129 leaves us with 309.
Bring next digit (5) of the dividend behind the 309 and repeat the process: 3095 / 910

Advancing to step 5:
910 can be fit into 3095 3 times, resulting in a remainder of 365.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
If we subtract 2730 from 3095, we get 365.
Append the next digit (3) from the dividend to 365 and continue with: 3653 / 910

Moving on to step 6:
When dividing 3653 by 910, we get 4 with a remainder of 13.
The next digit of our result is 4. 
Result so far: 234.0
Deduct 3640 from 3653 and we're left with 13.
Fetch the next digit (5) from the dividend, attach it to 13 and continue: 135 / 910

Moving on to step 7:
When dividing 135 by 910, we get 0 with a remainder of 135.
The number 0 becomes the next digit in our result. 
Result so far: 2340.0
The remainder is 135 after subtracting 0 from 135.
Take the next digit (8) from the dividend and append it to 135, then repeat: 1358 / 910

Moving on to step 8:
910 goes into 1358 1 times with a remainder of 448.
Write down 1 as next digit of the result. 
Result so far: 23401.0
Subtracting 910 from 1358 leaves us with 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Let's proceed to step 9:
When dividing 4480 by 910, we get 4 with a remainder of 840.
Record the quotient 4 as the next digit in the result. 
Result so far: 23401.4
Deduct 3640 from 4480 and we're left with 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8400, and continue the process.

Step 10:
The number 910 fits into 8400 9 times, leaving a remainder of 210.
Put 9 as the next digit of the answer. 
Result so far: 23401.49
Subtracting 8190 from 8400 leaves us with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

On to step 11:
The number 910 fits into 2100 2 times, leaving a remainder of 280.
Write down 2 as next digit of the result. 
Result so far: 23401.492
Deduct 1820 from 2100 and we're left with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Let's proceed to step 12:
910 can be fit into 2800 3 times, resulting in a remainder of 70.
Put 3 as the next digit of the answer. 
Result so far: 23401.4923
Subtracting 2730 from 2800 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 13:
910 can be fit into 700 0 times, resulting in a remainder of 700.
The next digit of our result is 0. 
Result so far: 23401.4923
Deduct 0 from 700 and we're left with 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

Advancing to step 14:
If we divide 7000 by 910, we get 7 and a remainder of 630.
Use 7 as the next digit of our solution. 
Result so far: 23401.492307
If we take 6370 away from 7000, we end up with 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

On to step 15:
6300 divided by 910 is 6 with a remainder of 840.
Use 6 as the next digit of our solution. 
Result so far: 23401.4923076
Deduct 5460 from 6300 and we're left with 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8400, and continue the process.

Step 16:
8400 divided by 910 is 9 with a remainder of 210.
Put 9 as the next digit of the answer. 
Result so far: 23401.49230769
If we subtract 8190 from 8400, we get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

The final outcome is 23401.49230769, with a leftover of 2.1e-07.