4365189 ÷ 251 
The aim is to understand the frequency of 251 in 4365189.

Moving on to step 1:
When dividing 4 by 251, we get 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 251

Going ahead to step 2:
If we divide 43 by 251, we get 0 and a remainder of 43.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 43, we get 43.
Take the next digit (6) from the dividend and append it to 43, then repeat: 436 / 251

Going ahead to step 3:
251 can be fit into 436 1 times, resulting in a remainder of 185.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 251 from 436 leaves us with 185.
Append the next digit (5) from the dividend to 185 and continue with: 1855 / 251

On to step 4:
If we divide 1855 by 251, we get 7 and a remainder of 98.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
The remainder is 98 after subtracting 1757 from 1855.
Grab the next digit (1) from the dividend, add it to 98, then carry on: 981 / 251

Advancing to step 5:
981 divided by 251 is 3 with a remainder of 228.
Put 3 as the next digit of the answer. 
Result so far: 173.0
If we subtract 753 from 981, we get 228.
Take the next digit (8) from the dividend and append it to 228, then repeat: 2288 / 251

Step 6:
When dividing 2288 by 251, we get 9 with a remainder of 29.
Put 9 as the next digit of the answer. 
Result so far: 1739.0
Subtracting 2259 from 2288 leaves us with 29.
Bring next digit (9) of the dividend behind the 29 and repeat the process: 299 / 251

Going ahead to step 7:
If we divide 299 by 251, we get 1 and a remainder of 48.
The next digit of our result is 1. 
Result so far: 17391.0
Subtract 251 from 299 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 8:
480 divided by 251 is 1 with a remainder of 229.
Put 1 as the next digit of the answer. 
Result so far: 17391.1
If we take 251 away from 480, we end up with 229.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2290, and continue the process.

Step 9:
251 can be fit into 2290 9 times, resulting in a remainder of 31.
The number 9 becomes the next digit in our result. 
Result so far: 17391.19
Subtract 2259 from 2290 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 10:
251 can be fit into 310 1 times, resulting in a remainder of 59.
The next digit of our result is 1. 
Result so far: 17391.191
If we subtract 251 from 310, we get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Let's proceed to step 11:
251 can be fit into 590 2 times, resulting in a remainder of 88.
Write down 2 as next digit of the result. 
Result so far: 17391.1912
The remainder is 88 after subtracting 502 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Going ahead to step 12:
When dividing 880 by 251, we get 3 with a remainder of 127.
The number 3 becomes the next digit in our result. 
Result so far: 17391.19123
Subtract 753 from 880 to get 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

Step 13:
The number 251 fits into 1270 5 times, leaving a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 17391.191235
If we subtract 1255 from 1270, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 14:
251 can be fit into 150 0 times, resulting in a remainder of 150.
The next digit of our result is 0. 
Result so far: 17391.191235
The remainder is 150 after subtracting 0 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Going ahead to step 15:
If we divide 1500 by 251, we get 5 and a remainder of 245.
Put 5 as the next digit of the answer. 
Result so far: 17391.19123505
The remainder is 245 after subtracting 1255 from 1500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

After the division, we end up with 17391.19123505 and a remainder of 2.45e-07.