83539592 divided by 639 
The aim is to understand the frequency of 639 in 83539592.

Advancing to step 1:
The number 639 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (3) of the dividend behind the 8 and repeat the process: 83 / 639

Step 2:
639 can be fit into 83 0 times, resulting in a remainder of 83.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 83, we get 83.
Take the next digit (5) from the dividend and append it to 83, then repeat: 835 / 639

Advancing to step 3:
639 goes into 835 1 times with a remainder of 196.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 639 from 835 leaves us with 196.
Fetch the next digit (3) from the dividend, attach it to 196 and continue: 1963 / 639

Advancing to step 4:
The number 639 fits into 1963 3 times, leaving a remainder of 46.
Put 3 as the next digit of the answer. 
Result so far: 13.0
Subtract 1917 from 1963 to get 46.
Fetch the next digit (9) from the dividend, attach it to 46 and continue: 469 / 639

Step 5:
The number 639 fits into 469 0 times, leaving a remainder of 469.
Use 0 as the next digit of our solution. 
Result so far: 130.0
The remainder is 469 after subtracting 0 from 469.
Fetch the next digit (5) from the dividend, attach it to 469 and continue: 4695 / 639

Moving on to step 6:
The number 639 fits into 4695 7 times, leaving a remainder of 222.
Record the quotient 7 as the next digit in the result. 
Result so far: 1307.0
If we take 4473 away from 4695, we end up with 222.
Bring next digit (9) of the dividend behind the 222 and repeat the process: 2229 / 639

On to step 7:
When dividing 2229 by 639, we get 3 with a remainder of 312.
Record the quotient 3 as the next digit in the result. 
Result so far: 13073.0
If we take 1917 away from 2229, we end up with 312.
Bring next digit (2) of the dividend behind the 312 and repeat the process: 3122 / 639

Advancing to step 8:
639 goes into 3122 4 times with a remainder of 566.
Put 4 as the next digit of the answer. 
Result so far: 130734.0
If we take 2556 away from 3122, we end up 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.

Moving on to step 9:
639 can be fit into 5660 8 times, resulting in a remainder of 548.
The number 8 becomes the next digit in our result. 
Result so far: 130734.8
Subtract 5112 from 5660 to get 548.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5480, and continue the process.

On to step 10:
When dividing 5480 by 639, we get 8 with a remainder of 368.
Use 8 as the next digit of our solution. 
Result so far: 130734.88
Deduct 5112 from 5480 and we're left with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

The quotient of the division is 130734.88, and the remainder is 0.368.