We're dividing 4419668 by 129 
The aim is to understand the frequency of 129 in 4419668.

Moving on to step 1:
The number 129 fits into 4 0 times, leaving a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (4) of the dividend behind the 4 and repeat the process: 44 / 129

Advancing to step 2:
129 can be fit into 44 0 times, resulting in a remainder of 44.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 44 leaves us with 44.
Grab the next digit (1) from the dividend, add it to 44, then carry on: 441 / 129

Advancing to step 3:
129 can be fit into 441 3 times, resulting in a remainder of 54.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 387 from 441 to get 54.
Grab the next digit (9) from the dividend, add it to 54, then carry on: 549 / 129

Let's proceed to step 4:
129 goes into 549 4 times with a remainder of 33.
Use 4 as the next digit of our solution. 
Result so far: 34.0
Subtracting 516 from 549 leaves us with 33.
Take the next digit (6) from the dividend and append it to 33, then repeat: 336 / 129

On to step 5:
129 goes into 336 2 times with a remainder of 78.
Record the quotient 2 as the next digit in the result. 
Result so far: 342.0
If we take 258 away from 336, we end up with 78.
Take the next digit (6) from the dividend and append it to 78, then repeat: 786 / 129

Let's proceed to step 6:
129 goes into 786 6 times with a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 3426.0
If we take 774 away from 786, we end up with 12.
Include the next digit (8) from the dividend after 12, then repeat: 128 / 129

On to step 7:
128 divided by 129 is 0 with a remainder of 128.
Use 0 as the next digit of our solution. 
Result so far: 34260.0
The remainder is 128 after subtracting 0 from 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Let's proceed to step 8:
When dividing 1280 by 129, we get 9 with a remainder of 119.
Record the quotient 9 as the next digit in the result. 
Result so far: 34260.9
Subtract 1161 from 1280 to get 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

On to step 9:
129 can be fit into 1190 9 times, resulting in a remainder of 29.
The next digit of our result is 9. 
Result so far: 34260.99
Deduct 1161 from 1190 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

The quotient of the division is 34260.99, and the remainder is 0.029.