3595463 ÷ 145 
The aim is to understand the frequency of 145 in 3595463.

Step 1:
3 divided by 145 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Include the next digit (5) from the dividend after 3, then repeat: 35 / 145

Advancing to step 2:
If we divide 35 by 145, we get 0 and a remainder of 35.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 35, we get 35.
Fetch the next digit (9) from the dividend, attach it to 35 and continue: 359 / 145

On to step 3:
359 divided by 145 is 2 with a remainder of 69.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 290 from 359, we get 69.
Fetch the next digit (5) from the dividend, attach it to 69 and continue: 695 / 145

Step 4:
If we divide 695 by 145, we get 4 and a remainder of 115.
Use 4 as the next digit of our solution. 
Result so far: 24.0
Subtracting 580 from 695 leaves us with 115.
Grab the next digit (4) from the dividend, add it to 115, then carry on: 1154 / 145

Going ahead to step 5:
The number 145 fits into 1154 7 times, leaving a remainder of 139.
Put 7 as the next digit of the answer. 
Result so far: 247.0
Deduct 1015 from 1154 and we're left with 139.
Include the next digit (6) from the dividend after 139, then repeat: 1396 / 145

Advancing to step 6:
145 goes into 1396 9 times with a remainder of 91.
The next digit of our result is 9. 
Result so far: 2479.0
Deduct 1305 from 1396 and we're left with 91.
Append the next digit (3) from the dividend to 91 and continue with: 913 / 145

On to step 7:
When dividing 913 by 145, we get 6 with a remainder of 43.
Put 6 as the next digit of the answer. 
Result so far: 24796.0
Subtract 870 from 913 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Let's proceed to step 8:
145 can be fit into 430 2 times, resulting in a remainder of 140.
The number 2 becomes the next digit in our result. 
Result so far: 24796.2
Subtract 290 from 430 to get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

On to step 9:
1400 divided by 145 is 9 with a remainder of 95.
Use 9 as the next digit of our solution. 
Result so far: 24796.29
Subtract 1305 from 1400 to get 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Going ahead to step 10:
145 can be fit into 950 6 times, resulting in a remainder of 80.
Use 6 as the next digit of our solution. 
Result so far: 24796.296
Deduct 870 from 950 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 11:
If we divide 800 by 145, we get 5 and a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 24796.2965
The remainder is 75 after subtracting 725 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Going ahead to step 12:
750 divided by 145 is 5 with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 24796.29655
Subtracting 725 from 750 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final outcome is 24796.29655, with a leftover of 2.5e-05.