We look at the division of 42839779 by 665 
The aim is to understand the frequency of 665 in 42839779.

Going ahead to step 1:
If we divide 4 by 665, we get 0 and a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 665

On to step 2:
If we divide 42 by 665, we get 0 and a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 42 and we're left with 42.
Append the next digit (8) from the dividend to 42 and continue with: 428 / 665

Advancing to step 3:
665 goes into 428 0 times with a remainder of 428.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 428, we end up with 428.
Include the next digit (3) from the dividend after 428, then repeat: 4283 / 665

Going ahead to step 4:
665 goes into 4283 6 times with a remainder of 293.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Subtracting 3990 from 4283 leaves us with 293.
Append the next digit (9) from the dividend to 293 and continue with: 2939 / 665

Advancing to step 5:
2939 divided by 665 is 4 with a remainder of 279.
Write down 4 as next digit of the result. 
Result so far: 64.0
The remainder is 279 after subtracting 2660 from 2939.
Grab the next digit (7) from the dividend, add it to 279, then carry on: 2797 / 665

Let's proceed to step 6:
2797 divided by 665 is 4 with a remainder of 137.
The number 4 becomes the next digit in our result. 
Result so far: 644.0
If we subtract 2660 from 2797, we get 137.
Grab the next digit (7) from the dividend, add it to 137, then carry on: 1377 / 665

Step 7:
The number 665 fits into 1377 2 times, leaving a remainder of 47.
The number 2 becomes the next digit in our result. 
Result so far: 6442.0
If we take 1330 away from 1377, we end up with 47.
Include the next digit (9) from the dividend after 47, then repeat: 479 / 665

Going ahead to step 8:
665 goes into 479 0 times with a remainder of 479.
Record the quotient 0 as the next digit in the result. 
Result so far: 64420.0
Deduct 0 from 479 and we're left with 479.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4790, and continue the process.

Let's proceed to step 9:
The number 665 fits into 4790 7 times, leaving a remainder of 135.
Record the quotient 7 as the next digit in the result. 
Result so far: 64420.7
Subtracting 4655 from 4790 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.

Let's proceed to step 10:
When dividing 1350 by 665, we get 2 with a remainder of 20.
Put 2 as the next digit of the answer. 
Result so far: 64420.72
If we take 1330 away from 1350, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 11:
665 can be fit into 200 0 times, resulting in a remainder of 200.
Use 0 as the next digit of our solution. 
Result so far: 64420.72
If we subtract 0 from 200, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 12:
665 goes into 2000 3 times with a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 64420.7203
If we take 1995 away from 2000, 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.

Advancing to step 13:
When dividing 50 by 665, we get 0 with a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 64420.7203
The remainder is 50 after subtracting 0 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 14:
665 can be fit into 500 0 times, resulting in a remainder of 500.
Record the quotient 0 as the next digit in the result. 
Result so far: 64420.7203
If we subtract 0 from 500, we get 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

The quotient of the division is 64420.7203, and the remainder is 5e-05.