80990506 ÷ 150 
The aim is to understand the frequency of 150 in 80990506.

Going ahead to step 1:
150 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 150

Going ahead to step 2:
If we divide 80 by 150, we get 0 and a remainder of 80.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 80 leaves us with 80.
Append the next digit (9) from the dividend to 80 and continue with: 809 / 150

Let's proceed to step 3:
809 divided by 150 is 5 with a remainder of 59.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
If we take 750 away from 809, we end up with 59.
Take the next digit (9) from the dividend and append it to 59, then repeat: 599 / 150

Going ahead to step 4:
The number 150 fits into 599 3 times, leaving a remainder of 149.
Write down 3 as next digit of the result. 
Result so far: 53.0
If we subtract 450 from 599, we get 149.
Take the next digit (0) from the dividend and append it to 149, then repeat: 1490 / 150

On to step 5:
150 goes into 1490 9 times with a remainder of 140.
The number 9 becomes the next digit in our result. 
Result so far: 539.0
Deduct 1350 from 1490 and we're left with 140.
Take the next digit (5) from the dividend and append it to 140, then repeat: 1405 / 150

Step 6:
1405 divided by 150 is 9 with a remainder of 55.
Use 9 as the next digit of our solution. 
Result so far: 5399.0
Deduct 1350 from 1405 and we're left with 55.
Append the next digit (0) from the dividend to 55 and continue with: 550 / 150

Advancing to step 7:
150 goes into 550 3 times with a remainder of 100.
Use 3 as the next digit of our solution. 
Result so far: 53993.0
If we take 450 away from 550, we end up with 100.
Bring next digit (6) of the dividend behind the 100 and repeat the process: 1006 / 150

Going ahead to step 8:
1006 divided by 150 is 6 with a remainder of 106.
The number 6 becomes the next digit in our result. 
Result so far: 539936.0
If we subtract 900 from 1006, we get 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

On to step 9:
150 can be fit into 1060 7 times, resulting in a remainder of 10.
The next digit of our result is 7. 
Result so far: 539936.7
The remainder is 10 after subtracting 1050 from 1060.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 10:
150 goes into 100 0 times with a remainder of 100.
The number 0 becomes the next digit in our result. 
Result so far: 539936.7
Subtract 0 from 100 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.

Moving on to step 11:
150 goes into 1000 6 times with a remainder of 100.
The number 6 becomes the next digit in our result. 
Result so far: 539936.706
The remainder is 100 after subtracting 900 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

On to step 12:
1000 divided by 150 is 6 with a remainder of 100.
Use 6 as the next digit of our solution. 
Result so far: 539936.7066
The remainder is 100 after subtracting 900 from 1000.
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 539936.7066, with a leftover of 0.001.