15831568 divided by 150 
The aim is to understand the frequency of 150 in 15831568.

Moving on to step 1:
1 divided by 150 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 150

Advancing to step 2:
The number 150 fits into 15 0 times, leaving a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 15 and we're left with 15.
Take the next digit (8) from the dividend and append it to 15, then repeat: 158 / 150

Moving on to step 3:
150 goes into 158 1 times with a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 8 after subtracting 150 from 158.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 150

Let's proceed to step 4:
If we divide 83 by 150, we get 0 and a remainder of 83.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we subtract 0 from 83, we get 83.
Append the next digit (1) from the dividend to 83 and continue with: 831 / 150

Advancing to step 5:
The number 150 fits into 831 5 times, leaving a remainder of 81.
Put 5 as the next digit of the answer. 
Result so far: 105.0
The remainder is 81 after subtracting 750 from 831.
Bring next digit (5) of the dividend behind the 81 and repeat the process: 815 / 150

On to step 6:
150 can be fit into 815 5 times, resulting in a remainder of 65.
The number 5 becomes the next digit in our result. 
Result so far: 1055.0
Subtract 750 from 815 to get 65.
Include the next digit (6) from the dividend after 65, then repeat: 656 / 150

Let's proceed to step 7:
If we divide 656 by 150, we get 4 and a remainder of 56.
Record the quotient 4 as the next digit in the result. 
Result so far: 10554.0
Subtracting 600 from 656 leaves us with 56.
Fetch the next digit (8) from the dividend, attach it to 56 and continue: 568 / 150

Step 8:
When dividing 568 by 150, we get 3 with a remainder of 118.
Write down 3 as next digit of the result. 
Result so far: 105543.0
The remainder is 118 after subtracting 450 from 568.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Going ahead to step 9:
150 can be fit into 1180 7 times, resulting in a remainder of 130.
Write down 7 as next digit of the result. 
Result so far: 105543.7
Deduct 1050 from 1180 and we're left with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Step 10:
When dividing 1300 by 150, we get 8 with a remainder of 100.
Write down 8 as next digit of the result. 
Result so far: 105543.78
The remainder is 100 after subtracting 1200 from 1300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Let's proceed to step 11:
When dividing 1000 by 150, we get 6 with a remainder of 100.
Put 6 as the next digit of the answer. 
Result so far: 105543.786
If we take 900 away from 1000, we end up with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 12:
If we divide 1000 by 150, we get 6 and a remainder of 100.
The number 6 becomes the next digit in our result. 
Result so far: 105543.7866
Subtract 900 from 1000 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The final outcome is 105543.7866, with a leftover of 0.001.