76930202 ÷ 639 
The aim is to understand the frequency of 639 in 76930202.

Advancing to step 1:
The number 639 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Bring next digit (6) of the dividend behind the 7 and repeat the process: 76 / 639

Going ahead to step 2:
639 can be fit into 76 0 times, resulting in a remainder of 76.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 76, we end up with 76.
Append the next digit (9) from the dividend to 76 and continue with: 769 / 639

On to step 3:
639 can be fit into 769 1 times, resulting in a remainder of 130.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 639 away from 769, we end up with 130.
Take the next digit (3) from the dividend and append it to 130, then repeat: 1303 / 639

Step 4:
639 can be fit into 1303 2 times, resulting in a remainder of 25.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Deduct 1278 from 1303 and we're left with 25.
Take the next digit (0) from the dividend and append it to 25, then repeat: 250 / 639

Step 5:
The number 639 fits into 250 0 times, leaving a remainder of 250.
Use 0 as the next digit of our solution. 
Result so far: 120.0
Deduct 0 from 250 and we're left with 250.
Take the next digit (2) from the dividend and append it to 250, then repeat: 2502 / 639

Let's proceed to step 6:
If we divide 2502 by 639, we get 3 and a remainder of 585.
Record the quotient 3 as the next digit in the result. 
Result so far: 1203.0
If we take 1917 away from 2502, we end up with 585.
Bring next digit (0) of the dividend behind the 585 and repeat the process: 5850 / 639

Advancing to step 7:
If we divide 5850 by 639, we get 9 and a remainder of 99.
Write down 9 as next digit of the result. 
Result so far: 12039.0
If we subtract 5751 from 5850, we get 99.
Take the next digit (2) from the dividend and append it to 99, then repeat: 992 / 639

Advancing to step 8:
When dividing 992 by 639, we get 1 with a remainder of 353.
Put 1 as the next digit of the answer. 
Result so far: 120391.0
The remainder is 353 after subtracting 639 from 992.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3530, and continue the process.

On to step 9:
When dividing 3530 by 639, we get 5 with a remainder of 335.
The next digit of our result is 5. 
Result so far: 120391.5
The remainder is 335 after subtracting 3195 from 3530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3350, and continue the process.

Moving on to step 10:
The number 639 fits into 3350 5 times, leaving a remainder of 155.
Write down 5 as next digit of the result. 
Result so far: 120391.55
If we take 3195 away from 3350, we end up with 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Our division results in 120391.55 with a remaining 0.155.