Let's divide 1854220 by 669
The aim is to understand the frequency of 669 in 1854220.

Going ahead to step 1:
1 divided by 669 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 669

Moving on to step 2:
18 divided by 669 is 0 with a remainder of 18.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 18, we get 18.
Grab the next digit (5) from the dividend, add it to 18, then carry on: 185 / 669

On to step 3:
When dividing 185 by 669, we get 0 with a remainder of 185.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 185, we end up with 185.
Bring next digit (4) of the dividend behind the 185 and repeat the process: 1854 / 669

Going ahead to step 4:
When dividing 1854 by 669, we get 2 with a remainder of 516.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 1338 from 1854 to get 516.
Include the next digit (2) from the dividend after 516, then repeat: 5162 / 669

Let's proceed to step 5:
669 goes into 5162 7 times with a remainder of 479.
Write down 7 as next digit of the result. 
Result so far: 27.0
Subtracting 4683 from 5162 leaves us with 479.
Take the next digit (2) from the dividend and append it to 479, then repeat: 4792 / 669

Let's proceed to step 6:
When dividing 4792 by 669, we get 7 with a remainder of 109.
Put 7 as the next digit of the answer. 
Result so far: 277.0
Deduct 4683 from 4792 and we're left with 109.
Bring next digit (0) of the dividend behind the 109 and repeat the process: 1090 / 669

Going ahead to step 7:
The number 669 fits into 1090 1 times, leaving a remainder of 421.
The number 1 becomes the next digit in our result. 
Result so far: 2771.0
Subtract 669 from 1090 to get 421.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4210, and continue the process.

Let's proceed to step 8:
4210 divided by 669 is 6 with a remainder of 196.
Write down 6 as next digit of the result. 
Result so far: 2771.6
Subtract 4014 from 4210 to get 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Advancing to step 9:
When dividing 1960 by 669, we get 2 with a remainder of 622.
Record the quotient 2 as the next digit in the result. 
Result so far: 2771.62
If we take 1338 away from 1960, we end up with 622.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6220, and continue the process.

Step 10:
6220 divided by 669 is 9 with a remainder of 199.
The next digit of our result is 9. 
Result so far: 2771.629
The remainder is 199 after subtracting 6021 from 6220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1990, and continue the process.

Moving on to step 11:
When dividing 1990 by 669, we get 2 with a remainder of 652.
Record the quotient 2 as the next digit in the result. 
Result so far: 2771.6292
If we subtract 1338 from 1990, we get 652.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6520, and continue the process.

Step 12:
When dividing 6520 by 669, we get 9 with a remainder of 499.
Write down 9 as next digit of the result. 
Result so far: 2771.62929
If we take 6021 away from 6520, we end up with 499.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4990, and continue the process.

Moving on to step 13:
4990 divided by 669 is 7 with a remainder of 307.
Write down 7 as next digit of the result. 
Result so far: 2771.629297
Subtract 4683 from 4990 to get 307.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3070, and continue the process.

Going ahead to step 14:
3070 divided by 669 is 4 with a remainder of 394.
Put 4 as the next digit of the answer. 
Result so far: 2771.6292974
If we take 2676 away from 3070, we end up with 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Going ahead to step 15:
When dividing 3940 by 669, we get 5 with a remainder of 595.
Record the quotient 5 as the next digit in the result. 
Result so far: 2771.62929745
The remainder is 595 after subtracting 3345 from 3940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5950, and continue the process.

The final outcome is 2771.62929745, with a leftover of 5.95e-07.