Let's divide 1606193 by 669
The aim is to understand the frequency of 669 in 1606193.

Moving on to step 1:
If we divide 1 by 669, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 669

Step 2:
When dividing 16 by 669, we get 0 with a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 16 after subtracting 0 from 16.
Fetch the next digit (0) from the dividend, attach it to 16 and continue: 160 / 669

Advancing to step 3:
160 divided by 669 is 0 with a remainder of 160.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 160 and we're left with 160.
Grab the next digit (6) from the dividend, add it to 160, then carry on: 1606 / 669

Going ahead to step 4:
1606 divided by 669 is 2 with a remainder of 268.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 1338 from 1606 leaves us with 268.
Bring next digit (1) of the dividend behind the 268 and repeat the process: 2681 / 669

On to step 5:
669 goes into 2681 4 times with a remainder of 5.
Put 4 as the next digit of the answer. 
Result so far: 24.0
If we take 2676 away from 2681, we end up with 5.
Take the next digit (9) from the dividend and append it to 5, then repeat: 59 / 669

Moving on to step 6:
The number 669 fits into 59 0 times, leaving a remainder of 59.
The number 0 becomes the next digit in our result. 
Result so far: 240.0
Subtracting 0 from 59 leaves us with 59.
Include the next digit (3) from the dividend after 59, then repeat: 593 / 669

Step 7:
669 goes into 593 0 times with a remainder of 593.
Put 0 as the next digit of the answer. 
Result so far: 2400.0
Subtract 0 from 593 to get 593.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5930, and continue the process.

Let's proceed to step 8:
669 can be fit into 5930 8 times, resulting in a remainder of 578.
Record the quotient 8 as the next digit in the result. 
Result so far: 2400.8
The remainder is 578 after subtracting 5352 from 5930.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5780, and continue the process.

On to step 9:
669 can be fit into 5780 8 times, resulting in a remainder of 428.
Use 8 as the next digit of our solution. 
Result so far: 2400.88
Subtracting 5352 from 5780 leaves us with 428.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

The quotient of the division is 2400.88, and the remainder is 0.428.