7583878 divided by 149 
The aim is to understand the frequency of 149 in 7583878.

Advancing to step 1:
7 divided by 149 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (5) from the dividend after 7, then repeat: 75 / 149

Moving on to step 2:
The number 149 fits into 75 0 times, leaving a remainder of 75.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 75, we end up with 75.
Fetch the next digit (8) from the dividend, attach it to 75 and continue: 758 / 149

Moving on to step 3:
The number 149 fits into 758 5 times, leaving a remainder of 13.
Put 5 as the next digit of the answer. 
Result so far: 5.0
The remainder is 13 after subtracting 745 from 758.
Include the next digit (3) from the dividend after 13, then repeat: 133 / 149

Moving on to step 4:
When dividing 133 by 149, we get 0 with a remainder of 133.
The next digit of our result is 0. 
Result so far: 50.0
If we subtract 0 from 133, we get 133.
Bring next digit (8) of the dividend behind the 133 and repeat the process: 1338 / 149

Moving on to step 5:
If we divide 1338 by 149, we get 8 and a remainder of 146.
The next digit of our result is 8. 
Result so far: 508.0
If we take 1192 away from 1338, we end up with 146.
Grab the next digit (7) from the dividend, add it to 146, then carry on: 1467 / 149

Going ahead to step 6:
149 can be fit into 1467 9 times, resulting in a remainder of 126.
Put 9 as the next digit of the answer. 
Result so far: 5089.0
If we take 1341 away from 1467, we end up with 126.
Append the next digit (8) from the dividend to 126 and continue with: 1268 / 149

Let's proceed to step 7:
1268 divided by 149 is 8 with a remainder of 76.
The number 8 becomes the next digit in our result. 
Result so far: 50898.0
Subtracting 1192 from 1268 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 8:
The number 149 fits into 760 5 times, leaving a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 50898.5
Subtract 745 from 760 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 9:
149 can be fit into 150 1 times, resulting in a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 50898.51
Deduct 149 from 150 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 10:
10 divided by 149 is 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 50898.51
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 11:
If we divide 100 by 149, we get 0 and a remainder of 100.
Use 0 as the next digit of our solution. 
Result so far: 50898.51
The remainder is 100 after subtracting 0 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

After the division, we end up with 50898.51 and a remainder of 0.001.