We look at the division of 4378415 by 208 
The aim is to understand the frequency of 208 in 4378415.

Advancing to step 1:
If we divide 4 by 208, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 208

Going ahead to step 2:
When dividing 43 by 208, we get 0 with a remainder of 43.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 43, we get 43.
Append the next digit (7) from the dividend to 43 and continue with: 437 / 208

On to step 3:
208 can be fit into 437 2 times, resulting in a remainder of 21.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 416 from 437 leaves us with 21.
Fetch the next digit (8) from the dividend, attach it to 21 and continue: 218 / 208

Advancing to step 4:
208 can be fit into 218 1 times, resulting in a remainder of 10.
Write down 1 as next digit of the result. 
Result so far: 21.0
If we subtract 208 from 218, we get 10.
Take the next digit (4) from the dividend and append it to 10, then repeat: 104 / 208

Advancing to step 5:
104 divided by 208 is 0 with a remainder of 104.
The number 0 becomes the next digit in our result. 
Result so far: 210.0
Subtracting 0 from 104 leaves us with 104.
Append the next digit (1) from the dividend to 104 and continue with: 1041 / 208

Going ahead to step 6:
If we divide 1041 by 208, we get 5 and a remainder of 1.
Use 5 as the next digit of our solution. 
Result so far: 2105.0
Subtract 1040 from 1041 to get 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 208

Going ahead to step 7:
If we divide 15 by 208, we get 0 and a remainder of 15.
The next digit of our result is 0. 
Result so far: 21050.0
Subtracting 0 from 15 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 8:
When dividing 150 by 208, we get 0 with a remainder of 150.
Record the quotient 0 as the next digit in the result. 
Result so far: 21050.0
If we take 0 away from 150, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Advancing to step 9:
If we divide 1500 by 208, we get 7 and a remainder of 44.
The next digit of our result is 7. 
Result so far: 21050.07
If we take 1456 away from 1500, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 10:
208 goes into 440 2 times with a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 21050.072
Subtract 416 from 440 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 11:
If we divide 240 by 208, we get 1 and a remainder of 32.
Record the quotient 1 as the next digit in the result. 
Result so far: 21050.0721
Deduct 208 from 240 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 12:
208 goes into 320 1 times with a remainder of 112.
The next digit of our result is 1. 
Result so far: 21050.07211
The remainder is 112 after subtracting 208 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Our division results in 21050.07211 with a remaining 0.000112.