Let's divide 25894117 by 321
The aim is to understand the frequency of 321 in 25894117.

Advancing to step 1:
When dividing 2 by 321, we get 0 with 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.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 321

Step 2:
25 divided by 321 is 0 with a remainder of 25.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 25 and we're left with 25.
Bring next digit (8) of the dividend behind the 25 and repeat the process: 258 / 321

Step 3:
The number 321 fits into 258 0 times, leaving a remainder of 258.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 258 and we're left with 258.
Take the next digit (9) from the dividend and append it to 258, then repeat: 2589 / 321

Going ahead to step 4:
When dividing 2589 by 321, we get 8 with a remainder of 21.
The next digit of our result is 8. 
Result so far: 8.0
Deduct 2568 from 2589 and we're left with 21.
Include the next digit (4) from the dividend after 21, then repeat: 214 / 321

Moving on to step 5:
The number 321 fits into 214 0 times, leaving a remainder of 214.
Put 0 as the next digit of the answer. 
Result so far: 80.0
Subtracting 0 from 214 leaves us with 214.
Grab the next digit (1) from the dividend, add it to 214, then carry on: 2141 / 321

Let's proceed to step 6:
2141 divided by 321 is 6 with a remainder of 215.
Use 6 as the next digit of our solution. 
Result so far: 806.0
Subtract 1926 from 2141 to get 215.
Bring next digit (1) of the dividend behind the 215 and repeat the process: 2151 / 321

Step 7:
321 can be fit into 2151 6 times, resulting in a remainder of 225.
The number 6 becomes the next digit in our result. 
Result so far: 8066.0
If we subtract 1926 from 2151, we get 225.
Bring next digit (7) of the dividend behind the 225 and repeat the process: 2257 / 321

Going ahead to step 8:
2257 divided by 321 is 7 with a remainder of 10.
The next digit of our result is 7. 
Result so far: 80667.0
Deduct 2247 from 2257 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 9:
The number 321 fits into 100 0 times, leaving a remainder of 100.
Use 0 as the next digit of our solution. 
Result so far: 80667.0
Subtracting 0 from 100 leaves us with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Step 10:
If we divide 1000 by 321, we get 3 and a remainder of 37.
Put 3 as the next digit of the answer. 
Result so far: 80667.03
If we subtract 963 from 1000, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 11:
370 divided by 321 is 1 with a remainder of 49.
Write down 1 as next digit of the result. 
Result so far: 80667.031
Deduct 321 from 370 and we're left with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

On to step 12:
321 can be fit into 490 1 times, resulting in a remainder of 169.
Put 1 as the next digit of the answer. 
Result so far: 80667.0311
Deduct 321 from 490 and we're left with 169.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1690, and continue the process.

The final outcome is 80667.0311, with a leftover of 0.00169.