Let's divide 3546219 by 641
The aim is to understand the frequency of 641 in 3546219.

Step 1:
When dividing 3 by 641, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Include the next digit (5) from the dividend after 3, then repeat: 35 / 641

Advancing to step 2:
If we divide 35 by 641, we get 0 and a remainder of 35.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 35 to get 35.
Append the next digit (4) from the dividend to 35 and continue with: 354 / 641

Step 3:
354 divided by 641 is 0 with a remainder of 354.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 354, we end up with 354.
Bring next digit (6) of the dividend behind the 354 and repeat the process: 3546 / 641

Moving on to step 4:
3546 divided by 641 is 5 with a remainder of 341.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Subtracting 3205 from 3546 leaves us with 341.
Bring next digit (2) of the dividend behind the 341 and repeat the process: 3412 / 641

Moving on to step 5:
When dividing 3412 by 641, we get 5 with a remainder of 207.
Write down 5 as next digit of the result. 
Result so far: 55.0
If we take 3205 away from 3412, we end up with 207.
Append the next digit (1) from the dividend to 207 and continue with: 2071 / 641

Going ahead to step 6:
The number 641 fits into 2071 3 times, leaving a remainder of 148.
The next digit of our result is 3. 
Result so far: 553.0
If we subtract 1923 from 2071, we get 148.
Take the next digit (9) from the dividend and append it to 148, then repeat: 1489 / 641

Let's proceed to step 7:
If we divide 1489 by 641, we get 2 and a remainder of 207.
Record the quotient 2 as the next digit in the result. 
Result so far: 5532.0
Subtracting 1282 from 1489 leaves us with 207.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2070, and continue the process.

Advancing to step 8:
2070 divided by 641 is 3 with a remainder of 147.
Put 3 as the next digit of the answer. 
Result so far: 5532.3
Subtract 1923 from 2070 to get 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

On to step 9:
641 goes into 1470 2 times with a remainder of 188.
Write down 2 as next digit of the result. 
Result so far: 5532.32
If we subtract 1282 from 1470, we get 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Moving on to step 10:
The number 641 fits into 1880 2 times, leaving a remainder of 598.
Write down 2 as next digit of the result. 
Result so far: 5532.322
Subtract 1282 from 1880 to get 598.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5980, and continue the process.

The quotient of the division is 5532.322, and the remainder is 0.0598.