97429950 ÷ 638 
The aim is to understand the frequency of 638 in 97429950.

Let's proceed to step 1:
638 goes into 9 0 times with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Include the next digit (7) from the dividend after 9, then repeat: 97 / 638

Going ahead to step 2:
The number 638 fits into 97 0 times, leaving a remainder of 97.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 97 after subtracting 0 from 97.
Append the next digit (4) from the dividend to 97 and continue with: 974 / 638

On to step 3:
638 goes into 974 1 times with a remainder of 336.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 638 from 974 and we're left with 336.
Include the next digit (2) from the dividend after 336, then repeat: 3362 / 638

Going ahead to step 4:
When dividing 3362 by 638, we get 5 with a remainder of 172.
The next digit of our result is 5. 
Result so far: 15.0
Deduct 3190 from 3362 and we're left with 172.
Fetch the next digit (9) from the dividend, attach it to 172 and continue: 1729 / 638

Going ahead to step 5:
When dividing 1729 by 638, we get 2 with a remainder of 453.
The number 2 becomes the next digit in our result. 
Result so far: 152.0
Subtracting 1276 from 1729 leaves us with 453.
Take the next digit (9) from the dividend and append it to 453, then repeat: 4539 / 638

Let's proceed to step 6:
638 can be fit into 4539 7 times, resulting in a remainder of 73.
Put 7 as the next digit of the answer. 
Result so far: 1527.0
If we subtract 4466 from 4539, we get 73.
Fetch the next digit (5) from the dividend, attach it to 73 and continue: 735 / 638

Moving on to step 7:
When dividing 735 by 638, we get 1 with a remainder of 97.
The next digit of our result is 1. 
Result so far: 15271.0
The remainder is 97 after subtracting 638 from 735.
Grab the next digit (0) from the dividend, add it to 97, then carry on: 970 / 638

Moving on to step 8:
970 divided by 638 is 1 with a remainder of 332.
Use 1 as the next digit of our solution. 
Result so far: 152711.0
If we take 638 away from 970, we end up with 332.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

Step 9:
638 can be fit into 3320 5 times, resulting in a remainder of 130.
Record the quotient 5 as the next digit in the result. 
Result so far: 152711.5
Subtract 3190 from 3320 to get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Moving on to step 10:
When dividing 1300 by 638, we get 2 with a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 152711.52
The remainder is 24 after subtracting 1276 from 1300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 11:
638 goes into 240 0 times with a remainder of 240.
The next digit of our result is 0. 
Result so far: 152711.52
The remainder is 240 after subtracting 0 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Going ahead to step 12:
638 can be fit into 2400 3 times, resulting in a remainder of 486.
Write down 3 as next digit of the result. 
Result so far: 152711.5203
The remainder is 486 after subtracting 1914 from 2400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

Let's proceed to step 13:
4860 divided by 638 is 7 with a remainder of 394.
Write down 7 as next digit of the result. 
Result so far: 152711.52037
If we subtract 4466 from 4860, we get 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Going ahead to step 14:
The number 638 fits into 3940 6 times, leaving a remainder of 112.
The next digit of our result is 6. 
Result so far: 152711.520376
Subtracting 3828 from 3940 leaves us with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Going ahead to step 15:
1120 divided by 638 is 1 with a remainder of 482.
Put 1 as the next digit of the answer. 
Result so far: 152711.5203761
Subtract 638 from 1120 to get 482.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4820, and continue the process.

Let's proceed to step 16:
638 can be fit into 4820 7 times, resulting in a remainder of 354.
Put 7 as the next digit of the answer. 
Result so far: 152711.52037617
Deduct 4466 from 4820 and we're left with 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Our division results in 152711.52037617 with a remaining 3.54e-07.