88986122 ÷ 639 
The aim is to understand the frequency of 639 in 88986122.

Advancing to step 1:
The number 639 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (8) from the dividend to 8 and continue with: 88 / 639

Moving on to step 2:
The number 639 fits into 88 0 times, leaving a remainder of 88.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 88, we end up with 88.
Append the next digit (9) from the dividend to 88 and continue with: 889 / 639

Let's proceed to step 3:
The number 639 fits into 889 1 times, leaving a remainder of 250.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 639 from 889 to get 250.
Append the next digit (8) from the dividend to 250 and continue with: 2508 / 639

Let's proceed to step 4:
2508 divided by 639 is 3 with a remainder of 591.
Put 3 as the next digit of the answer. 
Result so far: 13.0
Deduct 1917 from 2508 and we're left with 591.
Grab the next digit (6) from the dividend, add it to 591, then carry on: 5916 / 639

Advancing to step 5:
The number 639 fits into 5916 9 times, leaving a remainder of 165.
The number 9 becomes the next digit in our result. 
Result so far: 139.0
Deduct 5751 from 5916 and we're left with 165.
Take the next digit (1) from the dividend and append it to 165, then repeat: 1651 / 639

Let's proceed to step 6:
If we divide 1651 by 639, we get 2 and a remainder of 373.
Put 2 as the next digit of the answer. 
Result so far: 1392.0
The remainder is 373 after subtracting 1278 from 1651.
Take the next digit (2) from the dividend and append it to 373, then repeat: 3732 / 639

Advancing to step 7:
639 goes into 3732 5 times with a remainder of 537.
Put 5 as the next digit of the answer. 
Result so far: 13925.0
Deduct 3195 from 3732 and we're left with 537.
Include the next digit (2) from the dividend after 537, then repeat: 5372 / 639

Going ahead to step 8:
The number 639 fits into 5372 8 times, leaving a remainder of 260.
The number 8 becomes the next digit in our result. 
Result so far: 139258.0
Subtracting 5112 from 5372 leaves us with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Advancing to step 9:
639 can be fit into 2600 4 times, resulting in a remainder of 44.
Write down 4 as next digit of the result. 
Result so far: 139258.4
If we take 2556 away from 2600, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 10:
The number 639 fits into 440 0 times, leaving a remainder of 440.
Record the quotient 0 as the next digit in the result. 
Result so far: 139258.4
If we subtract 0 from 440, we get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Advancing to step 11:
4400 divided by 639 is 6 with a remainder of 566.
Use 6 as the next digit of our solution. 
Result so far: 139258.406
Subtracting 3834 from 4400 leaves us with 566.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5660, and continue the process.

Going ahead to step 12:
If we divide 5660 by 639, we get 8 and a remainder of 548.
Record the quotient 8 as the next digit in the result. 
Result so far: 139258.4068
If we take 5112 away from 5660, we end up with 548.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5480, and continue the process.

Step 13:
If we divide 5480 by 639, we get 8 and a remainder of 368.
Put 8 as the next digit of the answer. 
Result so far: 139258.40688
Subtract 5112 from 5480 to get 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

In conclusion, the division gives 139258.40688 with a balance of 0.000368.