3688604 divided by 437 
The aim is to understand the frequency of 437 in 3688604.

On to step 1:
When dividing 3 by 437, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Bring next digit (6) of the dividend behind the 3 and repeat the process: 36 / 437

Going ahead to step 2:
When dividing 36 by 437, we get 0 with a remainder of 36.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 36 to get 36.
Take the next digit (8) from the dividend and append it to 36, then repeat: 368 / 437

Advancing to step 3:
368 divided by 437 is 0 with a remainder of 368.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 368 after subtracting 0 from 368.
Take the next digit (8) from the dividend and append it to 368, then repeat: 3688 / 437

Advancing to step 4:
If we divide 3688 by 437, we get 8 and a remainder of 192.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 3496 from 3688 leaves us with 192.
Append the next digit (6) from the dividend to 192 and continue with: 1926 / 437

Advancing to step 5:
1926 divided by 437 is 4 with a remainder of 178.
The number 4 becomes the next digit in our result. 
Result so far: 84.0
Subtract 1748 from 1926 to get 178.
Fetch the next digit (0) from the dividend, attach it to 178 and continue: 1780 / 437

Let's proceed to step 6:
437 goes into 1780 4 times with a remainder of 32.
The next digit of our result is 4. 
Result so far: 844.0
Subtract 1748 from 1780 to get 32.
Bring next digit (4) of the dividend behind the 32 and repeat the process: 324 / 437

Going ahead to step 7:
When dividing 324 by 437, we get 0 with a remainder of 324.
The next digit of our result is 0. 
Result so far: 8440.0
Subtract 0 from 324 to get 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Let's proceed to step 8:
When dividing 3240 by 437, we get 7 with a remainder of 181.
Use 7 as the next digit of our solution. 
Result so far: 8440.7
The remainder is 181 after subtracting 3059 from 3240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1810, and continue the process.

Going ahead to step 9:
437 can be fit into 1810 4 times, resulting in a remainder of 62.
The next digit of our result is 4. 
Result so far: 8440.74
Subtract 1748 from 1810 to get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 10:
437 goes into 620 1 times with a remainder of 183.
Use 1 as the next digit of our solution. 
Result so far: 8440.741
Deduct 437 from 620 and we're left with 183.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1830, and continue the process.

Let's proceed to step 11:
1830 divided by 437 is 4 with a remainder of 82.
Use 4 as the next digit of our solution. 
Result so far: 8440.7414
The remainder is 82 after subtracting 1748 from 1830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Let's proceed to step 12:
When dividing 820 by 437, we get 1 with a remainder of 383.
The number 1 becomes the next digit in our result. 
Result so far: 8440.74141
Deduct 437 from 820 and we're left with 383.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3830, and continue the process.

Step 13:
437 goes into 3830 8 times with a remainder of 334.
Record the quotient 8 as the next digit in the result. 
Result so far: 8440.741418
Subtract 3496 from 3830 to get 334.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3340, and continue the process.

Advancing to step 14:
If we divide 3340 by 437, we get 7 and a remainder of 281.
The next digit of our result is 7. 
Result so far: 8440.7414187
Deduct 3059 from 3340 and we're left with 281.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2810, and continue the process.

Let's proceed to step 15:
If we divide 2810 by 437, we get 6 and a remainder of 188.
Record the quotient 6 as the next digit in the result. 
Result so far: 8440.74141876
Subtracting 2622 from 2810 leaves us with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

The final result is 8440.74141876 with a remainder of 1.88e-07.