2086868 ÷ 145 
The aim is to understand the frequency of 145 in 2086868.

Advancing to step 1:
When dividing 2 by 145, we get 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 145

Going ahead to step 2:
If we divide 20 by 145, we get 0 and a remainder of 20.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 20 after subtracting 0 from 20.
Take the next digit (8) from the dividend and append it to 20, then repeat: 208 / 145

Step 3:
The number 145 fits into 208 1 times, leaving a remainder of 63.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 145 from 208 and we're left with 63.
Include the next digit (6) from the dividend after 63, then repeat: 636 / 145

On to step 4:
The number 145 fits into 636 4 times, leaving a remainder of 56.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
If we subtract 580 from 636, we get 56.
Append the next digit (8) from the dividend to 56 and continue with: 568 / 145

Let's proceed to step 5:
If we divide 568 by 145, we get 3 and a remainder of 133.
Record the quotient 3 as the next digit in the result. 
Result so far: 143.0
Subtract 435 from 568 to get 133.
Bring next digit (6) of the dividend behind the 133 and repeat the process: 1336 / 145

Moving on to step 6:
145 goes into 1336 9 times with a remainder of 31.
Use 9 as the next digit of our solution. 
Result so far: 1439.0
Subtract 1305 from 1336 to get 31.
Append the next digit (8) from the dividend to 31 and continue with: 318 / 145

Advancing to step 7:
318 divided by 145 is 2 with a remainder of 28.
Record the quotient 2 as the next digit in the result. 
Result so far: 14392.0
Deduct 290 from 318 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 8:
145 can be fit into 280 1 times, resulting in a remainder of 135.
The number 1 becomes the next digit in our result. 
Result so far: 14392.1
Subtracting 145 from 280 leaves us with 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

On to step 9:
If we divide 1350 by 145, we get 9 and a remainder of 45.
Record the quotient 9 as the next digit in the result. 
Result so far: 14392.19
Deduct 1305 from 1350 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 10:
145 can be fit into 450 3 times, resulting in a remainder of 15.
Record the quotient 3 as the next digit in the result. 
Result so far: 14392.193
If we take 435 away from 450, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 11:
145 can be fit into 150 1 times, resulting in a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 14392.1931
If we take 145 away from 150, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 12:
145 can be fit into 50 0 times, resulting in a remainder of 50.
The number 0 becomes the next digit in our result. 
Result so far: 14392.1931
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 13:
500 divided by 145 is 3 with a remainder of 65.
Use 3 as the next digit of our solution. 
Result so far: 14392.193103
If we subtract 435 from 500, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 14:
If we divide 650 by 145, we get 4 and a remainder of 70.
The number 4 becomes the next digit in our result. 
Result so far: 14392.1931034
The remainder is 70 after subtracting 580 from 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 15:
700 divided by 145 is 4 with a remainder of 120.
Put 4 as the next digit of the answer. 
Result so far: 14392.19310344
If we subtract 580 from 700, we get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

After the division, we end up with 14392.19310344 and a remainder of 1.2e-07.