71769454 ÷ 639 
The aim is to understand the frequency of 639 in 71769454.

Let's proceed to step 1:
If we divide 7 by 639, we get 0 and a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (1) from the dividend and append it to 7, then repeat: 71 / 639

Let's proceed to step 2:
639 can be fit into 71 0 times, resulting in a remainder of 71.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 71, we end up with 71.
Grab the next digit (7) from the dividend, add it to 71, then carry on: 717 / 639

Going ahead to step 3:
If we divide 717 by 639, we get 1 and a remainder of 78.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 639 away from 717, we end up with 78.
Take the next digit (6) from the dividend and append it to 78, then repeat: 786 / 639

Moving on to step 4:
When dividing 786 by 639, we get 1 with a remainder of 147.
Put 1 as the next digit of the answer. 
Result so far: 11.0
If we take 639 away from 786, we end up with 147.
Fetch the next digit (9) from the dividend, attach it to 147 and continue: 1479 / 639

Step 5:
639 goes into 1479 2 times with a remainder of 201.
The next digit of our result is 2. 
Result so far: 112.0
Subtracting 1278 from 1479 leaves us with 201.
Include the next digit (4) from the dividend after 201, then repeat: 2014 / 639

On to step 6:
When dividing 2014 by 639, we get 3 with a remainder of 97.
The next digit of our result is 3. 
Result so far: 1123.0
Subtracting 1917 from 2014 leaves us with 97.
Take the next digit (5) from the dividend and append it to 97, then repeat: 975 / 639

Step 7:
975 divided by 639 is 1 with a remainder of 336.
The next digit of our result is 1. 
Result so far: 11231.0
Subtract 639 from 975 to get 336.
Append the next digit (4) from the dividend to 336 and continue with: 3364 / 639

Moving on to step 8:
639 goes into 3364 5 times with a remainder of 169.
Write down 5 as next digit of the result. 
Result so far: 112315.0
If we take 3195 away from 3364, we end up with 169.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1690, and continue the process.

Moving on to step 9:
The number 639 fits into 1690 2 times, leaving a remainder of 412.
Record the quotient 2 as the next digit in the result. 
Result so far: 112315.2
Subtracting 1278 from 1690 leaves us with 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

On to step 10:
4120 divided by 639 is 6 with a remainder of 286.
The number 6 becomes the next digit in our result. 
Result so far: 112315.26
Deduct 3834 from 4120 and we're left 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.

Moving on to step 11:
The number 639 fits into 2860 4 times, leaving a remainder of 304.
Write down 4 as next digit of the result. 
Result so far: 112315.264
Deduct 2556 from 2860 and we're left 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.

Advancing to step 12:
When dividing 3040 by 639, we get 4 with a remainder of 484.
The number 4 becomes the next digit in our result. 
Result so far: 112315.2644
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.

The final result is 112315.2644 with a remainder of 0.00484.