89149220 ÷ 639 
The aim is to understand the frequency of 639 in 89149220.

Step 1:
639 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (9) from the dividend and append it to 8, then repeat: 89 / 639

On to step 2:
89 divided by 639 is 0 with a remainder of 89.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 89, we get 89.
Append the next digit (1) from the dividend to 89 and continue with: 891 / 639

Let's proceed to step 3:
The number 639 fits into 891 1 times, leaving a remainder of 252.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 639 from 891, we get 252.
Bring next digit (4) of the dividend behind the 252 and repeat the process: 2524 / 639

Advancing to step 4:
639 goes into 2524 3 times with a remainder of 607.
Use 3 as the next digit of our solution. 
Result so far: 13.0
If we subtract 1917 from 2524, we get 607.
Append the next digit (9) from the dividend to 607 and continue with: 6079 / 639

Going ahead to step 5:
The number 639 fits into 6079 9 times, leaving a remainder of 328.
Use 9 as the next digit of our solution. 
Result so far: 139.0
The remainder is 328 after subtracting 5751 from 6079.
Fetch the next digit (2) from the dividend, attach it to 328 and continue: 3282 / 639

Let's proceed to step 6:
639 goes into 3282 5 times with a remainder of 87.
The number 5 becomes the next digit in our result. 
Result so far: 1395.0
Subtracting 3195 from 3282 leaves us with 87.
Fetch the next digit (2) from the dividend, attach it to 87 and continue: 872 / 639

Going ahead to step 7:
639 goes into 872 1 times with a remainder of 233.
Record the quotient 1 as the next digit in the result. 
Result so far: 13951.0
Deduct 639 from 872 and we're left with 233.
Take the next digit (0) from the dividend and append it to 233, then repeat: 2330 / 639

Going ahead to step 8:
If we divide 2330 by 639, we get 3 and a remainder of 413.
Use 3 as the next digit of our solution. 
Result so far: 139513.0
If we take 1917 away from 2330, we end up with 413.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4130, and continue the process.

Let's proceed to step 9:
639 goes into 4130 6 times with a remainder of 296.
The next digit of our result is 6. 
Result so far: 139513.6
The remainder is 296 after subtracting 3834 from 4130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Let's proceed to step 10:
When dividing 2960 by 639, we get 4 with a remainder of 404.
The number 4 becomes the next digit in our result. 
Result so far: 139513.64
Subtract 2556 from 2960 to get 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

Step 11:
4040 divided by 639 is 6 with a remainder of 206.
Write down 6 as next digit of the result. 
Result so far: 139513.646
Subtract 3834 from 4040 to get 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

Going ahead to step 12:
2060 divided by 639 is 3 with a remainder of 143.
Use 3 as the next digit of our solution. 
Result so far: 139513.6463
Subtract 1917 from 2060 to get 143.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1430, and continue the process.

Moving on to step 13:
639 can be fit into 1430 2 times, resulting in a remainder of 152.
The next digit of our result is 2. 
Result so far: 139513.64632
Subtracting 1278 from 1430 leaves us with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Let's proceed to step 14:
When dividing 1520 by 639, we get 2 with a remainder of 242.
Write down 2 as next digit of the result. 
Result so far: 139513.646322
The remainder is 242 after subtracting 1278 from 1520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

The final outcome is 139513.646322, with a leftover of 2.42e-05.