We're dividing 45464356 by 639 
The aim is to understand the frequency of 639 in 45464356.

On to step 1:
When dividing 4 by 639, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 639

Moving on to step 2:
If we divide 45 by 639, we get 0 and a remainder of 45.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 45 after subtracting 0 from 45.
Append the next digit (4) from the dividend to 45 and continue with: 454 / 639

Let's proceed to step 3:
454 divided by 639 is 0 with a remainder of 454.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 454, we get 454.
Bring next digit (6) of the dividend behind the 454 and repeat the process: 4546 / 639

Let's proceed to step 4:
The number 639 fits into 4546 7 times, leaving a remainder of 73.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtracting 4473 from 4546 leaves us with 73.
Bring next digit (4) of the dividend behind the 73 and repeat the process: 734 / 639

Step 5:
639 goes into 734 1 times with a remainder of 95.
Use 1 as the next digit of our solution. 
Result so far: 71.0
If we take 639 away from 734, we end up with 95.
Include the next digit (3) from the dividend after 95, then repeat: 953 / 639

Going ahead to step 6:
If we divide 953 by 639, we get 1 and a remainder of 314.
Put 1 as the next digit of the answer. 
Result so far: 711.0
If we subtract 639 from 953, we get 314.
Fetch the next digit (5) from the dividend, attach it to 314 and continue: 3145 / 639

Step 7:
639 goes into 3145 4 times with a remainder of 589.
Record the quotient 4 as the next digit in the result. 
Result so far: 7114.0
Subtract 2556 from 3145 to get 589.
Take the next digit (6) from the dividend and append it to 589, then repeat: 5896 / 639

Advancing to step 8:
639 goes into 5896 9 times with a remainder of 145.
Put 9 as the next digit of the answer. 
Result so far: 71149.0
If we take 5751 away from 5896, we end up with 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Step 9:
639 goes into 1450 2 times with a remainder of 172.
The number 2 becomes the next digit in our result. 
Result so far: 71149.2
Subtract 1278 from 1450 to get 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Going ahead to step 10:
639 can be fit into 1720 2 times, resulting in a remainder of 442.
Use 2 as the next digit of our solution. 
Result so far: 71149.22
Subtract 1278 from 1720 to get 442.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4420, and continue the process.

The final outcome is 71149.22, with a leftover of 0.442.