80465646 divided by 639 
The aim is to understand the frequency of 639 in 80465646.

Let's proceed to step 1:
When dividing 8 by 639, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 639

Going ahead to step 2:
The number 639 fits into 80 0 times, leaving a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 80, we end up with 80.
Take the next digit (4) from the dividend and append it to 80, then repeat: 804 / 639

Advancing to step 3:
804 divided by 639 is 1 with a remainder of 165.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 639 from 804 and we're left with 165.
Take the next digit (6) from the dividend and append it to 165, then repeat: 1656 / 639

Step 4:
If we divide 1656 by 639, we get 2 and a remainder of 378.
Use 2 as the next digit of our solution. 
Result so far: 12.0
The remainder is 378 after subtracting 1278 from 1656.
Fetch the next digit (5) from the dividend, attach it to 378 and continue: 3785 / 639

Going ahead to step 5:
If we divide 3785 by 639, we get 5 and a remainder of 590.
The number 5 becomes the next digit in our result. 
Result so far: 125.0
Deduct 3195 from 3785 and we're left with 590.
Take the next digit (6) from the dividend and append it to 590, then repeat: 5906 / 639

Step 6:
The number 639 fits into 5906 9 times, leaving a remainder of 155.
Record the quotient 9 as the next digit in the result. 
Result so far: 1259.0
If we subtract 5751 from 5906, we get 155.
Bring next digit (4) of the dividend behind the 155 and repeat the process: 1554 / 639

Advancing to step 7:
639 can be fit into 1554 2 times, resulting in a remainder of 276.
Write down 2 as next digit of the result. 
Result so far: 12592.0
Subtract 1278 from 1554 to get 276.
Fetch the next digit (6) from the dividend, attach it to 276 and continue: 2766 / 639

Moving on to step 8:
If we divide 2766 by 639, we get 4 and a remainder of 210.
The number 4 becomes the next digit in our result. 
Result so far: 125924.0
Deduct 2556 from 2766 and we're left with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Advancing to step 9:
639 can be fit into 2100 3 times, resulting in a remainder of 183.
The number 3 becomes the next digit in our result. 
Result so far: 125924.3
Subtract 1917 from 2100 to get 183.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1830, and continue the process.

On to step 10:
The number 639 fits into 1830 2 times, leaving a remainder of 552.
The next digit of our result is 2. 
Result so far: 125924.32
Subtract 1278 from 1830 to get 552.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5520, and continue the process.

Going ahead to step 11:
The number 639 fits into 5520 8 times, leaving a remainder of 408.
Use 8 as the next digit of our solution. 
Result so far: 125924.328
If we take 5112 away from 5520, we end up with 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

Advancing to step 12:
4080 divided by 639 is 6 with a remainder of 246.
Use 6 as the next digit of our solution. 
Result so far: 125924.3286
The remainder is 246 after subtracting 3834 from 4080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Advancing to step 13:
If we divide 2460 by 639, we get 3 and a remainder of 543.
Use 3 as the next digit of our solution. 
Result so far: 125924.32863
Deduct 1917 from 2460 and we're left with 543.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5430, and continue the process.

On to step 14:
When dividing 5430 by 639, we get 8 with a remainder of 318.
Put 8 as the next digit of the answer. 
Result so far: 125924.328638
If we take 5112 away from 5430, we end up with 318.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

Moving on to step 15:
When dividing 3180 by 639, we get 4 with a remainder of 624.
The next digit of our result is 4. 
Result so far: 125924.3286384
If we take 2556 away from 3180, we end up with 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

Let's proceed to step 16:
If we divide 6240 by 639, we get 9 and a remainder of 489.
The next digit of our result is 9. 
Result so far: 125924.32863849
If we take 5751 away from 6240, we end up with 489.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4890, and continue the process.

After the division, we end up with 125924.32863849 and a remainder of 4.89e-07.