3578190 divided by 765 
The aim is to understand the frequency of 765 in 3578190.

Moving on to step 1:
If we divide 3 by 765, we get 0 and a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Include the next digit (5) from the dividend after 3, then repeat: 35 / 765

On to step 2:
The number 765 fits into 35 0 times, leaving a remainder of 35.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 35 after subtracting 0 from 35.
Take the next digit (7) from the dividend and append it to 35, then repeat: 357 / 765

On to step 3:
357 divided by 765 is 0 with a remainder of 357.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 357 leaves us with 357.
Include the next digit (8) from the dividend after 357, then repeat: 3578 / 765

Advancing to step 4:
765 goes into 3578 4 times with a remainder of 518.
The next digit of our result is 4. 
Result so far: 4.0
Deduct 3060 from 3578 and we're left with 518.
Fetch the next digit (1) from the dividend, attach it to 518 and continue: 5181 / 765

Going ahead to step 5:
When dividing 5181 by 765, we get 6 with a remainder of 591.
Use 6 as the next digit of our solution. 
Result so far: 46.0
If we take 4590 away from 5181, we end up with 591.
Take the next digit (9) from the dividend and append it to 591, then repeat: 5919 / 765

Advancing to step 6:
765 goes into 5919 7 times with a remainder of 564.
The number 7 becomes the next digit in our result. 
Result so far: 467.0
The remainder is 564 after subtracting 5355 from 5919.
Append the next digit (0) from the dividend to 564 and continue with: 5640 / 765

Step 7:
The number 765 fits into 5640 7 times, leaving a remainder of 285.
The next digit of our result is 7. 
Result so far: 4677.0
If we take 5355 away from 5640, we end up with 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

Let's proceed to step 8:
The number 765 fits into 2850 3 times, leaving a remainder of 555.
Write down 3 as next digit of the result. 
Result so far: 4677.3
If we take 2295 away from 2850, we end up with 555.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5550, and continue the process.

Advancing to step 9:
When dividing 5550 by 765, we get 7 with a remainder of 195.
Put 7 as the next digit of the answer. 
Result so far: 4677.37
Subtracting 5355 from 5550 leaves us with 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Let's proceed to step 10:
1950 divided by 765 is 2 with a remainder of 420.
The number 2 becomes the next digit in our result. 
Result so far: 4677.372
Deduct 1530 from 1950 and we're left with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Moving on to step 11:
765 can be fit into 4200 5 times, resulting in a remainder of 375.
Use 5 as the next digit of our solution. 
Result so far: 4677.3725
Subtracting 3825 from 4200 leaves us with 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Step 12:
765 can be fit into 3750 4 times, resulting in a remainder of 690.
Write down 4 as next digit of the result. 
Result so far: 4677.37254
Subtracting 3060 from 3750 leaves us with 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6900, and continue the process.

Step 13:
765 can be fit into 6900 9 times, resulting in a remainder of 15.
The next digit of our result is 9. 
Result so far: 4677.372549
Deduct 6885 from 6900 and we're left 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 14:
When dividing 150 by 765, we get 0 with a remainder of 150.
Put 0 as the next digit of the answer. 
Result so far: 4677.372549
If we take 0 away from 150, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Going ahead to step 15:
When dividing 1500 by 765, we get 1 with a remainder of 735.
The next digit of our result is 1. 
Result so far: 4677.37254901
Subtracting 765 from 1500 leaves us with 735.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7350, and continue the process.

After the division, we end up with 4677.37254901 and a remainder of 7.35e-07.