We're dividing 4386283 by 639 
The aim is to understand the frequency of 639 in 4386283.

Step 1:
If we divide 4 by 639, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 639

Moving on to step 2:
The number 639 fits into 43 0 times, leaving a remainder of 43.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 43 after subtracting 0 from 43.
Grab the next digit (8) from the dividend, add it to 43, then carry on: 438 / 639

On to step 3:
The number 639 fits into 438 0 times, leaving a remainder of 438.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 438, we get 438.
Take the next digit (6) from the dividend and append it to 438, then repeat: 4386 / 639

Step 4:
The number 639 fits into 4386 6 times, leaving a remainder of 552.
Put 6 as the next digit of the answer. 
Result so far: 6.0
The remainder is 552 after subtracting 3834 from 4386.
Take the next digit (2) from the dividend and append it to 552, then repeat: 5522 / 639

On to step 5:
639 can be fit into 5522 8 times, resulting in a remainder of 410.
Write down 8 as next digit of the result. 
Result so far: 68.0
The remainder is 410 after subtracting 5112 from 5522.
Include the next digit (8) from the dividend after 410, then repeat: 4108 / 639

Let's proceed to step 6:
When dividing 4108 by 639, we get 6 with a remainder of 274.
Record the quotient 6 as the next digit in the result. 
Result so far: 686.0
Subtract 3834 from 4108 to get 274.
Append the next digit (3) from the dividend to 274 and continue with: 2743 / 639

Advancing to step 7:
639 can be fit into 2743 4 times, resulting in a remainder of 187.
Use 4 as the next digit of our solution. 
Result so far: 6864.0
The remainder is 187 after subtracting 2556 from 2743.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

Step 8:
When dividing 1870 by 639, we get 2 with a remainder of 592.
The next digit of our result is 2. 
Result so far: 6864.2
If we take 1278 away from 1870, we end up with 592.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5920, and continue the process.

Advancing to step 9:
If we divide 5920 by 639, we get 9 and a remainder of 169.
The next digit of our result is 9. 
Result so far: 6864.29
Subtract 5751 from 5920 to get 169.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1690, and continue the process.

Let's proceed to step 10:
When dividing 1690 by 639, we get 2 with a remainder of 412.
The next digit of our result is 2. 
Result so far: 6864.292
If we subtract 1278 from 1690, we get 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

Moving on to step 11:
If we divide 4120 by 639, we get 6 and a remainder of 286.
Put 6 as the next digit of the answer. 
Result so far: 6864.2926
If we take 3834 away from 4120, we end up with 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

On to step 12:
When dividing 2860 by 639, we get 4 with a remainder of 304.
Use 4 as the next digit of our solution. 
Result so far: 6864.29264
Subtracting 2556 from 2860 leaves us with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Going ahead to step 13:
639 goes into 3040 4 times with a remainder of 484.
Write down 4 as next digit of the result. 
Result so far: 6864.292644
The remainder is 484 after subtracting 2556 from 3040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4840, and continue the process.

In conclusion, the division gives 6864.292644 with a balance of 4.84e-05.