Let's divide 37881609 by 154
The aim is to understand the frequency of 154 in 37881609.

Moving on to step 1:
154 can be fit into 3 0 times, resulting in a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Take the next digit (7) from the dividend and append it to 3, then repeat: 37 / 154

Step 2:
When dividing 37 by 154, we get 0 with a remainder of 37.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 37 to get 37.
Bring next digit (8) of the dividend behind the 37 and repeat the process: 378 / 154

Let's proceed to step 3:
154 goes into 378 2 times with a remainder of 70.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 308 from 378, we get 70.
Bring next digit (8) of the dividend behind the 70 and repeat the process: 708 / 154

Moving on to step 4:
708 divided by 154 is 4 with a remainder of 92.
The number 4 becomes the next digit in our result. 
Result so far: 24.0
Deduct 616 from 708 and we're left with 92.
Fetch the next digit (1) from the dividend, attach it to 92 and continue: 921 / 154

Moving on to step 5:
If we divide 921 by 154, we get 5 and a remainder of 151.
Put 5 as the next digit of the answer. 
Result so far: 245.0
The remainder is 151 after subtracting 770 from 921.
Grab the next digit (6) from the dividend, add it to 151, then carry on: 1516 / 154

Step 6:
154 goes into 1516 9 times with a remainder of 130.
Write down 9 as next digit of the result. 
Result so far: 2459.0
If we subtract 1386 from 1516, we get 130.
Grab the next digit (0) from the dividend, add it to 130, then carry on: 1300 / 154

Step 7:
The number 154 fits into 1300 8 times, leaving a remainder of 68.
The next digit of our result is 8. 
Result so far: 24598.0
If we take 1232 away from 1300, we end up with 68.
Take the next digit (9) from the dividend and append it to 68, then repeat: 689 / 154

Let's proceed to step 8:
If we divide 689 by 154, we get 4 and a remainder of 73.
The next digit of our result is 4. 
Result so far: 245984.0
Deduct 616 from 689 and we're left with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

On to step 9:
154 can be fit into 730 4 times, resulting in a remainder of 114.
Write down 4 as next digit of the result. 
Result so far: 245984.4
If we subtract 616 from 730, we get 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Going ahead to step 10:
154 goes into 1140 7 times with a remainder of 62.
Use 7 as the next digit of our solution. 
Result so far: 245984.47
Deduct 1078 from 1140 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 11:
620 divided by 154 is 4 with a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 245984.474
Subtracting 616 from 620 leaves us 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.

Let's proceed to step 12:
When dividing 40 by 154, we get 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 245984.474
If we take 0 away from 40, we end up 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 13:
154 goes into 400 2 times with a remainder of 92.
Put 2 as the next digit of the answer. 
Result so far: 245984.47402
Subtracting 308 from 400 leaves us with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Going ahead to step 14:
154 can be fit into 920 5 times, resulting in a remainder of 150.
Use 5 as the next digit of our solution. 
Result so far: 245984.474025
Subtract 770 from 920 to get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Step 15:
When dividing 1500 by 154, we get 9 with a remainder of 114.
The number 9 becomes the next digit in our result. 
Result so far: 245984.4740259
Subtracting 1386 from 1500 leaves us with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

On to step 16:
154 can be fit into 1140 7 times, resulting in a remainder of 62.
The number 7 becomes the next digit in our result. 
Result so far: 245984.47402597
Deduct 1078 from 1140 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

The final outcome is 245984.47402597, with a leftover of 6.2e-08.