Let's divide 45423817 by 406
The aim is to understand the frequency of 406 in 45423817.

Moving on to step 1:
4 divided by 406 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 406

Let's proceed to step 2:
The number 406 fits into 45 0 times, leaving a remainder of 45.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 45 to get 45.
Fetch the next digit (4) from the dividend, attach it to 45 and continue: 454 / 406

Going ahead to step 3:
When dividing 454 by 406, we get 1 with a remainder of 48.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 48 after subtracting 406 from 454.
Fetch the next digit (2) from the dividend, attach it to 48 and continue: 482 / 406

On to step 4:
If we divide 482 by 406, we get 1 and a remainder of 76.
The next digit of our result is 1. 
Result so far: 11.0
Deduct 406 from 482 and we're left with 76.
Include the next digit (3) from the dividend after 76, then repeat: 763 / 406

Moving on to step 5:
406 goes into 763 1 times with a remainder of 357.
Record the quotient 1 as the next digit in the result. 
Result so far: 111.0
The remainder is 357 after subtracting 406 from 763.
Bring next digit (8) of the dividend behind the 357 and repeat the process: 3578 / 406

Moving on to step 6:
If we divide 3578 by 406, we get 8 and a remainder of 330.
The number 8 becomes the next digit in our result. 
Result so far: 1118.0
If we take 3248 away from 3578, we end up with 330.
Grab the next digit (1) from the dividend, add it to 330, then carry on: 3301 / 406

Advancing to step 7:
406 goes into 3301 8 times with a remainder of 53.
Use 8 as the next digit of our solution. 
Result so far: 11188.0
If we subtract 3248 from 3301, we get 53.
Take the next digit (7) from the dividend and append it to 53, then repeat: 537 / 406

Step 8:
When dividing 537 by 406, we get 1 with a remainder of 131.
Record the quotient 1 as the next digit in the result. 
Result so far: 111881.0
If we take 406 away from 537, we end up with 131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

On to step 9:
If we divide 1310 by 406, we get 3 and a remainder of 92.
Put 3 as the next digit of the answer. 
Result so far: 111881.3
The remainder is 92 after subtracting 1218 from 1310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Let's proceed to step 10:
406 can be fit into 920 2 times, resulting in a remainder of 108.
Write down 2 as next digit of the result. 
Result so far: 111881.32
The remainder is 108 after subtracting 812 from 920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Advancing to step 11:
406 goes into 1080 2 times with a remainder of 268.
Put 2 as the next digit of the answer. 
Result so far: 111881.322
Deduct 812 from 1080 and we're left with 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Our division results in 111881.322 with a remaining 0.0268.