We look at the division of 73089598 by 408 
The aim is to understand the frequency of 408 in 73089598.

Going ahead to step 1:
7 divided by 408 is 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Append the next digit (3) from the dividend to 7 and continue with: 73 / 408

Moving on to step 2:
The number 408 fits into 73 0 times, leaving a remainder of 73.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 73 after subtracting 0 from 73.
Fetch the next digit (0) from the dividend, attach it to 73 and continue: 730 / 408

Advancing to step 3:
408 goes into 730 1 times with a remainder of 322.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 408 from 730 leaves us with 322.
Fetch the next digit (8) from the dividend, attach it to 322 and continue: 3228 / 408

On to step 4:
When dividing 3228 by 408, we get 7 with a remainder of 372.
Put 7 as the next digit of the answer. 
Result so far: 17.0
If we take 2856 away from 3228, we end up with 372.
Include the next digit (9) from the dividend after 372, then repeat: 3729 / 408

Let's proceed to step 5:
408 can be fit into 3729 9 times, resulting in a remainder of 57.
Use 9 as the next digit of our solution. 
Result so far: 179.0
Deduct 3672 from 3729 and we're left with 57.
Include the next digit (5) from the dividend after 57, then repeat: 575 / 408

Advancing to step 6:
If we divide 575 by 408, we get 1 and a remainder of 167.
Put 1 as the next digit of the answer. 
Result so far: 1791.0
If we take 408 away from 575, we end up with 167.
Grab the next digit (9) from the dividend, add it to 167, then carry on: 1679 / 408

Step 7:
408 can be fit into 1679 4 times, resulting in a remainder of 47.
Put 4 as the next digit of the answer. 
Result so far: 17914.0
Subtracting 1632 from 1679 leaves us with 47.
Append the next digit (8) from the dividend to 47 and continue with: 478 / 408

Let's proceed to step 8:
When dividing 478 by 408, we get 1 with a remainder of 70.
Put 1 as the next digit of the answer. 
Result so far: 179141.0
Subtract 408 from 478 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 9:
If we divide 700 by 408, we get 1 and a remainder of 292.
The number 1 becomes the next digit in our result. 
Result so far: 179141.1
If we take 408 away from 700, we end up with 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Going ahead to step 10:
2920 divided by 408 is 7 with a remainder of 64.
The next digit of our result is 7. 
Result so far: 179141.17
If we take 2856 away from 2920, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 11:
408 can be fit into 640 1 times, resulting in a remainder of 232.
The next digit of our result is 1. 
Result so far: 179141.171
Subtracting 408 from 640 leaves us with 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Let's proceed to step 12:
If we divide 2320 by 408, we get 5 and a remainder of 280.
The next digit of our result is 5. 
Result so far: 179141.1715
Subtracting 2040 from 2320 leaves us with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Advancing to step 13:
408 can be fit into 2800 6 times, resulting in a remainder of 352.
Use 6 as the next digit of our solution. 
Result so far: 179141.17156
If we subtract 2448 from 2800, we get 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Going ahead to step 14:
When dividing 3520 by 408, we get 8 with a remainder of 256.
Record the quotient 8 as the next digit in the result. 
Result so far: 179141.171568
If we subtract 3264 from 3520, we get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Going ahead to step 15:
2560 divided by 408 is 6 with a remainder of 112.
Record the quotient 6 as the next digit in the result. 
Result so far: 179141.1715686
Deduct 2448 from 2560 and we're left 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.

Step 16:
408 can be fit into 1120 2 times, resulting in a remainder of 304.
The next digit of our result is 2. 
Result so far: 179141.17156862
Deduct 816 from 1120 and we're left with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Our division results in 179141.17156862 with a remaining 3.04e-07.