We're dividing 86524574 by 139 
The aim is to understand the frequency of 139 in 86524574.

Going ahead to step 1:
8 divided by 139 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 139

Let's proceed to step 2:
86 divided by 139 is 0 with a remainder of 86.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 86, we end up with 86.
Fetch the next digit (5) from the dividend, attach it to 86 and continue: 865 / 139

Advancing to step 3:
139 goes into 865 6 times with a remainder of 31.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Deduct 834 from 865 and we're left with 31.
Take the next digit (2) from the dividend and append it to 31, then repeat: 312 / 139

Moving on to step 4:
If we divide 312 by 139, we get 2 and a remainder of 34.
Record the quotient 2 as the next digit in the result. 
Result so far: 62.0
Subtracting 278 from 312 leaves us with 34.
Fetch the next digit (4) from the dividend, attach it to 34 and continue: 344 / 139

Moving on to step 5:
When dividing 344 by 139, we get 2 with a remainder of 66.
Put 2 as the next digit of the answer. 
Result so far: 622.0
If we subtract 278 from 344, we get 66.
Fetch the next digit (5) from the dividend, attach it to 66 and continue: 665 / 139

Let's proceed to step 6:
139 can be fit into 665 4 times, resulting in a remainder of 109.
Put 4 as the next digit of the answer. 
Result so far: 6224.0
Subtract 556 from 665 to get 109.
Fetch the next digit (7) from the dividend, attach it to 109 and continue: 1097 / 139

Moving on to step 7:
139 goes into 1097 7 times with a remainder of 124.
Use 7 as the next digit of our solution. 
Result so far: 62247.0
Subtract 973 from 1097 to get 124.
Grab the next digit (4) from the dividend, add it to 124, then carry on: 1244 / 139

Step 8:
The number 139 fits into 1244 8 times, leaving a remainder of 132.
Record the quotient 8 as the next digit in the result. 
Result so far: 622478.0
If we subtract 1112 from 1244, we get 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Step 9:
When dividing 1320 by 139, we get 9 with a remainder of 69.
The next digit of our result is 9. 
Result so far: 622478.9
Subtract 1251 from 1320 to get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Moving on to step 10:
The number 139 fits into 690 4 times, leaving a remainder of 134.
Record the quotient 4 as the next digit in the result. 
Result so far: 622478.94
If we take 556 away from 690, we end up with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Step 11:
The number 139 fits into 1340 9 times, leaving a remainder of 89.
Record the quotient 9 as the next digit in the result. 
Result so far: 622478.949
If we take 1251 away from 1340, we end up with 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Step 12:
139 can be fit into 890 6 times, resulting in a remainder of 56.
Write down 6 as next digit of the result. 
Result so far: 622478.9496
Deduct 834 from 890 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 13:
139 can be fit into 560 4 times, resulting in a remainder of 4.
Use 4 as the next digit of our solution. 
Result so far: 622478.94964
If we take 556 away from 560, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 14:
If we divide 40 by 139, we get 0 and a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 622478.94964
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 15:
400 divided by 139 is 2 with a remainder of 122.
Write down 2 as next digit of the result. 
Result so far: 622478.9496402
Deduct 278 from 400 and we're left with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Let's proceed to step 16:
When dividing 1220 by 139, we get 8 with a remainder of 108.
Write down 8 as next digit of the result. 
Result so far: 622478.94964028
Deduct 1112 from 1220 and we're left with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

The final result is 622478.94964028 with a remainder of 1.08e-07.