We're dividing 9035588 by 139 
The aim is to understand the frequency of 139 in 9035588.

On to step 1:
The number 139 fits into 9 0 times, leaving a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 139

Moving on to step 2:
139 goes into 90 0 times with a remainder of 90.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 90, we get 90.
Include the next digit (3) from the dividend after 90, then repeat: 903 / 139

Step 3:
903 divided by 139 is 6 with a remainder of 69.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we subtract 834 from 903, we get 69.
Include the next digit (5) from the dividend after 69, then repeat: 695 / 139

Going ahead to step 4:
139 can be fit into 695 5 times, resulting in a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 65.0
Subtract 695 from 695 to get 0.
Take the next digit (5) from the dividend and append it to 0, then repeat: 5 / 139

Advancing to step 5:
If we divide 5 by 139, we get 0 and a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 650.0
The remainder is 5 after subtracting 0 from 5.
Grab the next digit (8) from the dividend, add it to 5, then carry on: 58 / 139

On to step 6:
139 can be fit into 58 0 times, resulting in a remainder of 58.
Record the quotient 0 as the next digit in the result. 
Result so far: 6500.0
Subtracting 0 from 58 leaves us with 58.
Take the next digit (8) from the dividend and append it to 58, then repeat: 588 / 139

Let's proceed to step 7:
If we divide 588 by 139, we get 4 and a remainder of 32.
Record the quotient 4 as the next digit in the result. 
Result so far: 65004.0
Deduct 556 from 588 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 8:
139 goes into 320 2 times with a remainder of 42.
Write down 2 as next digit of the result. 
Result so far: 65004.2
Subtracting 278 from 320 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 9:
If we divide 420 by 139, we get 3 and a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 65004.23
If we subtract 417 from 420, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 10:
The number 139 fits into 30 0 times, leaving a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 65004.23
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 11:
If we divide 300 by 139, we get 2 and a remainder of 22.
Record the quotient 2 as the next digit in the result. 
Result so far: 65004.2302
Deduct 278 from 300 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 12:
When dividing 220 by 139, we get 1 with a remainder of 81.
Record the quotient 1 as the next digit in the result. 
Result so far: 65004.23021
Subtracting 139 from 220 leaves us with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Advancing to step 13:
The number 139 fits into 810 5 times, leaving a remainder of 115.
The number 5 becomes the next digit in our result. 
Result so far: 65004.230215
The remainder is 115 after subtracting 695 from 810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Let's proceed to step 14:
139 goes into 1150 8 times with a remainder of 38.
The next digit of our result is 8. 
Result so far: 65004.2302158
Deduct 1112 from 1150 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 15:
380 divided by 139 is 2 with a remainder of 102.
Put 2 as the next digit of the answer. 
Result so far: 65004.23021582
Subtracting 278 from 380 leaves us with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

The final outcome is 65004.23021582, with a leftover of 1.02e-07.