We look at the division of 73547737 by 406 
The aim is to understand the frequency of 406 in 73547737.

Going ahead to step 1:
The number 406 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Append the next digit (3) from the dividend to 7 and continue with: 73 / 406

Moving on to step 2:
73 divided by 406 is 0 with a remainder of 73.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 73, we get 73.
Grab the next digit (5) from the dividend, add it to 73, then carry on: 735 / 406

Step 3:
735 divided by 406 is 1 with a remainder of 329.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 406 from 735 leaves us with 329.
Fetch the next digit (4) from the dividend, attach it to 329 and continue: 3294 / 406

Step 4:
3294 divided by 406 is 8 with a remainder of 46.
Use 8 as the next digit of our solution. 
Result so far: 18.0
If we take 3248 away from 3294, we end up with 46.
Include the next digit (7) from the dividend after 46, then repeat: 467 / 406

Step 5:
467 divided by 406 is 1 with a remainder of 61.
Use 1 as the next digit of our solution. 
Result so far: 181.0
Subtract 406 from 467 to get 61.
Grab the next digit (7) from the dividend, add it to 61, then carry on: 617 / 406

Advancing to step 6:
If we divide 617 by 406, we get 1 and a remainder of 211.
Put 1 as the next digit of the answer. 
Result so far: 1811.0
If we take 406 away from 617, we end up with 211.
Append the next digit (3) from the dividend to 211 and continue with: 2113 / 406

Let's proceed to step 7:
The number 406 fits into 2113 5 times, leaving a remainder of 83.
Use 5 as the next digit of our solution. 
Result so far: 18115.0
If we subtract 2030 from 2113, we get 83.
Take the next digit (7) from the dividend and append it to 83, then repeat: 837 / 406

Let's proceed to step 8:
If we divide 837 by 406, we get 2 and a remainder of 25.
Put 2 as the next digit of the answer. 
Result so far: 181152.0
Deduct 812 from 837 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 9:
250 divided by 406 is 0 with a remainder of 250.
Use 0 as the next digit of our solution. 
Result so far: 181152.0
Subtract 0 from 250 to get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

On to step 10:
2500 divided by 406 is 6 with a remainder of 64.
Put 6 as the next digit of the answer. 
Result so far: 181152.06
If we subtract 2436 from 2500, we get 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:
When dividing 640 by 406, we get 1 with a remainder of 234.
The number 1 becomes the next digit in our result. 
Result so far: 181152.061
The remainder is 234 after subtracting 406 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

Advancing to step 12:
406 goes into 2340 5 times with a remainder of 310.
The number 5 becomes the next digit in our result. 
Result so far: 181152.0615
If we take 2030 away from 2340, we end up with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Going ahead to step 13:
3100 divided by 406 is 7 with a remainder of 258.
Use 7 as the next digit of our solution. 
Result so far: 181152.06157
Subtracting 2842 from 3100 leaves us with 258.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2580, and continue the process.

On to step 14:
406 can be fit into 2580 6 times, resulting in a remainder of 144.
Use 6 as the next digit of our solution. 
Result so far: 181152.061576
Subtract 2436 from 2580 to get 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Going ahead to step 15:
The number 406 fits into 1440 3 times, leaving a remainder of 222.
Record the quotient 3 as the next digit in the result. 
Result so far: 181152.0615763
If we subtract 1218 from 1440, we get 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

Moving on to step 16:
2220 divided by 406 is 5 with a remainder of 190.
Use 5 as the next digit of our solution. 
Result so far: 181152.06157635
If we subtract 2030 from 2220, we get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Our division results in 181152.06157635 with a remaining 1.9e-07.