34389973 ÷ 454 
The aim is to understand the frequency of 454 in 34389973.

On to step 1:
If we divide 3 by 454, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 454

Let's proceed to step 2:
34 divided by 454 is 0 with a remainder of 34.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 34, we end up with 34.
Include the next digit (3) from the dividend after 34, then repeat: 343 / 454

Advancing to step 3:
The number 454 fits into 343 0 times, leaving a remainder of 343.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 343, we get 343.
Grab the next digit (8) from the dividend, add it to 343, then carry on: 3438 / 454

On to step 4:
3438 divided by 454 is 7 with a remainder of 260.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtract 3178 from 3438 to get 260.
Append the next digit (9) from the dividend to 260 and continue with: 2609 / 454

Moving on to step 5:
When dividing 2609 by 454, we get 5 with a remainder of 339.
The number 5 becomes the next digit in our result. 
Result so far: 75.0
Subtract 2270 from 2609 to get 339.
Append the next digit (9) from the dividend to 339 and continue with: 3399 / 454

Going ahead to step 6:
When dividing 3399 by 454, we get 7 with a remainder of 221.
Record the quotient 7 as the next digit in the result. 
Result so far: 757.0
Subtract 3178 from 3399 to get 221.
Grab the next digit (7) from the dividend, add it to 221, then carry on: 2217 / 454

Moving on to step 7:
When dividing 2217 by 454, we get 4 with a remainder of 401.
Use 4 as the next digit of our solution. 
Result so far: 7574.0
Subtract 1816 from 2217 to get 401.
Append the next digit (3) from the dividend to 401 and continue with: 4013 / 454

Let's proceed to step 8:
The number 454 fits into 4013 8 times, leaving a remainder of 381.
Put 8 as the next digit of the answer. 
Result so far: 75748.0
If we take 3632 away from 4013, we end up with 381.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3810, and continue the process.

On to step 9:
When dividing 3810 by 454, we get 8 with a remainder of 178.
The next digit of our result is 8. 
Result so far: 75748.8
Subtracting 3632 from 3810 leaves us with 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Let's proceed to step 10:
454 goes into 1780 3 times with a remainder of 418.
The number 3 becomes the next digit in our result. 
Result so far: 75748.83
If we take 1362 away from 1780, we end up with 418.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4180, and continue the process.

Step 11:
454 goes into 4180 9 times with a remainder of 94.
Write down 9 as next digit of the result. 
Result so far: 75748.839
The remainder is 94 after subtracting 4086 from 4180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Advancing to step 12:
454 can be fit into 940 2 times, resulting in a remainder of 32.
Record the quotient 2 as the next digit in the result. 
Result so far: 75748.8392
Subtract 908 from 940 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 13:
454 goes into 320 0 times with a remainder of 320.
The number 0 becomes the next digit in our result. 
Result so far: 75748.8392
The remainder is 320 after subtracting 0 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Step 14:
454 can be fit into 3200 7 times, resulting in a remainder of 22.
The number 7 becomes the next digit in our result. 
Result so far: 75748.839207
Subtracting 3178 from 3200 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 15:
220 divided by 454 is 0 with a remainder of 220.
Put 0 as the next digit of the answer. 
Result so far: 75748.839207
Subtracting 0 from 220 leaves us with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Advancing to step 16:
The number 454 fits into 2200 4 times, leaving a remainder of 384.
The number 4 becomes the next digit in our result. 
Result so far: 75748.83920704
Deduct 1816 from 2200 and we're left with 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Our division results in 75748.83920704 with a remaining 3.84e-07.