We look at the division of 10216397 by 437 
The aim is to understand the frequency of 437 in 10216397.

Moving on to step 1:
If we divide 1 by 437, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 437

On to step 2:
10 divided by 437 is 0 with a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 10 and we're left with 10.
Grab the next digit (2) from the dividend, add it to 10, then carry on: 102 / 437

Moving on to step 3:
102 divided by 437 is 0 with a remainder of 102.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 102 to get 102.
Include the next digit (1) from the dividend after 102, then repeat: 1021 / 437

Advancing to step 4:
437 can be fit into 1021 2 times, resulting in a remainder of 147.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 874 from 1021 leaves us with 147.
Fetch the next digit (6) from the dividend, attach it to 147 and continue: 1476 / 437

Let's proceed to step 5:
437 can be fit into 1476 3 times, resulting in a remainder of 165.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
If we take 1311 away from 1476, we end up with 165.
Grab the next digit (3) from the dividend, add it to 165, then carry on: 1653 / 437

Let's proceed to step 6:
437 goes into 1653 3 times with a remainder of 342.
The number 3 becomes the next digit in our result. 
Result so far: 233.0
Subtracting 1311 from 1653 leaves us with 342.
Append the next digit (9) from the dividend to 342 and continue with: 3429 / 437

On to step 7:
437 can be fit into 3429 7 times, resulting in a remainder of 370.
The number 7 becomes the next digit in our result. 
Result so far: 2337.0
The remainder is 370 after subtracting 3059 from 3429.
Grab the next digit (7) from the dividend, add it to 370, then carry on: 3707 / 437

Step 8:
If we divide 3707 by 437, we get 8 and a remainder of 211.
The next digit of our result is 8. 
Result so far: 23378.0
The remainder is 211 after subtracting 3496 from 3707.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2110, and continue the process.

On to step 9:
The number 437 fits into 2110 4 times, leaving a remainder of 362.
Use 4 as the next digit of our solution. 
Result so far: 23378.4
If we take 1748 away from 2110, we end up with 362.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

Moving on to step 10:
3620 divided by 437 is 8 with a remainder of 124.
The number 8 becomes the next digit in our result. 
Result so far: 23378.48
Deduct 3496 from 3620 and we're left with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Going ahead to step 11:
437 can be fit into 1240 2 times, resulting in a remainder of 366.
Record the quotient 2 as the next digit in the result. 
Result so far: 23378.482
If we subtract 874 from 1240, we get 366.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3660, and continue the process.

Going ahead to step 12:
3660 divided by 437 is 8 with a remainder of 164.
Use 8 as the next digit of our solution. 
Result so far: 23378.4828
If we subtract 3496 from 3660, we get 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

On to step 13:
If we divide 1640 by 437, we get 3 and a remainder of 329.
Record the quotient 3 as the next digit in the result. 
Result so far: 23378.48283
If we subtract 1311 from 1640, we get 329.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3290, and continue the process.

Moving on to step 14:
437 can be fit into 3290 7 times, resulting in a remainder of 231.
Put 7 as the next digit of the answer. 
Result so far: 23378.482837
Subtracting 3059 from 3290 leaves us with 231.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2310, and continue the process.

Let's proceed to step 15:
2310 divided by 437 is 5 with a remainder of 125.
The next digit of our result is 5. 
Result so far: 23378.4828375
Deduct 2185 from 2310 and we're left with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

On to step 16:
The number 437 fits into 1250 2 times, leaving a remainder of 376.
The next digit of our result is 2. 
Result so far: 23378.48283752
Deduct 874 from 1250 and we're left with 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

In conclusion, the division gives 23378.48283752 with a balance of 3.76e-07.