7424774 ÷ 139 
The aim is to understand the frequency of 139 in 7424774.

Step 1:
If we divide 7 by 139, we get 0 and a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (4) from the dividend after 7, then repeat: 74 / 139

Step 2:
The number 139 fits into 74 0 times, leaving a remainder of 74.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 74, we get 74.
Fetch the next digit (2) from the dividend, attach it to 74 and continue: 742 / 139

Going ahead to step 3:
If we divide 742 by 139, we get 5 and a remainder of 47.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we subtract 695 from 742, we get 47.
Append the next digit (4) from the dividend to 47 and continue with: 474 / 139

Advancing to step 4:
If we divide 474 by 139, we get 3 and a remainder of 57.
The number 3 becomes the next digit in our result. 
Result so far: 53.0
If we subtract 417 from 474, we get 57.
Include the next digit (7) from the dividend after 57, then repeat: 577 / 139

Going ahead to step 5:
139 goes into 577 4 times with a remainder of 21.
The number 4 becomes the next digit in our result. 
Result so far: 534.0
The remainder is 21 after subtracting 556 from 577.
Grab the next digit (7) from the dividend, add it to 21, then carry on: 217 / 139

Advancing to step 6:
The number 139 fits into 217 1 times, leaving a remainder of 78.
The number 1 becomes the next digit in our result. 
Result so far: 5341.0
Subtracting 139 from 217 leaves us with 78.
Grab the next digit (4) from the dividend, add it to 78, then carry on: 784 / 139

Advancing to step 7:
784 divided by 139 is 5 with a remainder of 89.
Record the quotient 5 as the next digit in the result. 
Result so far: 53415.0
Subtract 695 from 784 to get 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Let's proceed to step 8:
If we divide 890 by 139, we get 6 and a remainder of 56.
Use 6 as the next digit of our solution. 
Result so far: 53415.6
If we take 834 away from 890, we end up 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.

Advancing to step 9:
139 can be fit into 560 4 times, resulting in a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 53415.64
If we subtract 556 from 560, we get 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 10:
139 goes into 40 0 times with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 53415.64
Subtracting 0 from 40 leaves us 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.

Going ahead to step 11:
400 divided by 139 is 2 with a remainder of 122.
Put 2 as the next digit of the answer. 
Result so far: 53415.6402
The remainder is 122 after subtracting 278 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

On to step 12:
The number 139 fits into 1220 8 times, leaving a remainder of 108.
The next digit of our result is 8. 
Result so far: 53415.64028
If we subtract 1112 from 1220, we get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Going ahead to step 13:
139 goes into 1080 7 times with a remainder of 107.
The next digit of our result is 7. 
Result so far: 53415.640287
If we subtract 973 from 1080, we get 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

Advancing to step 14:
139 can be fit into 1070 7 times, resulting in a remainder of 97.
The number 7 becomes the next digit in our result. 
Result so far: 53415.6402877
If we subtract 973 from 1070, we get 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

The final result is 53415.6402877 with a remainder of 9.7e-07.