We're dividing 403216 by 403 
The aim is to understand the frequency of 403 in 403216.

Step 1:
If we divide 4 by 403, we get 0 and a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 403

Let's proceed to step 2:
403 goes into 40 0 times with a remainder of 40.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 40 and we're left with 40.
Append the next digit (3) from the dividend to 40 and continue with: 403 / 403

Advancing to step 3:
403 divided by 403 is 1 with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 0 after subtracting 403 from 403.
Take the next digit (2) from the dividend and append it to 0, then repeat: 2 / 403

Moving on to step 4:
403 can be fit into 2 0 times, resulting in a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtract 0 from 2 to get 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 403

Advancing to step 5:
403 can be fit into 21 0 times, resulting in a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 100.0
Deduct 0 from 21 and we're left with 21.
Fetch the next digit (6) from the dividend, attach it to 21 and continue: 216 / 403

Moving on to step 6:
403 goes into 216 0 times with a remainder of 216.
The number 0 becomes the next digit in our result. 
Result so far: 1000.0
Subtract 0 from 216 to get 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Let's proceed to step 7:
If we divide 2160 by 403, we get 5 and a remainder of 145.
Use 5 as the next digit of our solution. 
Result so far: 1000.5
If we take 2015 away from 2160, we end up with 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Going ahead to step 8:
403 can be fit into 1450 3 times, resulting in a remainder of 241.
The number 3 becomes the next digit in our result. 
Result so far: 1000.53
If we subtract 1209 from 1450, we get 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

Moving on to step 9:
When dividing 2410 by 403, we get 5 with a remainder of 395.
Write down 5 as next digit of the result. 
Result so far: 1000.535
The remainder is 395 after subtracting 2015 from 2410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3950, and continue the process.

Let's proceed to step 10:
3950 divided by 403 is 9 with a remainder of 323.
Use 9 as the next digit of our solution. 
Result so far: 1000.5359
Subtracting 3627 from 3950 leaves us with 323.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3230, and continue the process.

On to step 11:
When dividing 3230 by 403, we get 8 with a remainder of 6.
The number 8 becomes the next digit in our result. 
Result so far: 1000.53598
Subtracting 3224 from 3230 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 12:
60 divided by 403 is 0 with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 1000.53598
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 13:
403 goes into 600 1 times with a remainder of 197.
Use 1 as the next digit of our solution. 
Result so far: 1000.5359801
The remainder is 197 after subtracting 403 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1970, and continue the process.

Advancing to step 14:
The number 403 fits into 1970 4 times, leaving a remainder of 358.
Use 4 as the next digit of our solution. 
Result so far: 1000.53598014
Subtract 1612 from 1970 to get 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

The quotient of the division is 1000.53598014, and the remainder is 3.58e-07.