We look at the division of 96678573 by 406 
The aim is to understand the frequency of 406 in 96678573.

Moving on to step 1:
9 divided by 406 is 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Bring next digit (6) of the dividend behind the 9 and repeat the process: 96 / 406

Let's proceed to step 2:
406 can be fit into 96 0 times, resulting in a remainder of 96.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 96 to get 96.
Fetch the next digit (6) from the dividend, attach it to 96 and continue: 966 / 406

Advancing to step 3:
966 divided by 406 is 2 with a remainder of 154.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 154 after subtracting 812 from 966.
Include the next digit (7) from the dividend after 154, then repeat: 1547 / 406

Step 4:
1547 divided by 406 is 3 with a remainder of 329.
Put 3 as the next digit of the answer. 
Result so far: 23.0
Subtracting 1218 from 1547 leaves us with 329.
Include the next digit (8) from the dividend after 329, then repeat: 3298 / 406

Going ahead to step 5:
406 can be fit into 3298 8 times, resulting in a remainder of 50.
Put 8 as the next digit of the answer. 
Result so far: 238.0
Subtract 3248 from 3298 to get 50.
Append the next digit (5) from the dividend to 50 and continue with: 505 / 406

Advancing to step 6:
The number 406 fits into 505 1 times, leaving a remainder of 99.
The number 1 becomes the next digit in our result. 
Result so far: 2381.0
If we subtract 406 from 505, we get 99.
Fetch the next digit (7) from the dividend, attach it to 99 and continue: 997 / 406

Advancing to step 7:
The number 406 fits into 997 2 times, leaving a remainder of 185.
Use 2 as the next digit of our solution. 
Result so far: 23812.0
Subtract 812 from 997 to get 185.
Bring next digit (3) of the dividend behind the 185 and repeat the process: 1853 / 406

Going ahead to step 8:
If we divide 1853 by 406, we get 4 and a remainder of 229.
The number 4 becomes the next digit in our result. 
Result so far: 238124.0
Subtracting 1624 from 1853 leaves us with 229.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2290, and continue the process.

Moving on to step 9:
When dividing 2290 by 406, we get 5 with a remainder of 260.
The next digit of our result is 5. 
Result so far: 238124.5
Deduct 2030 from 2290 and we're left with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Advancing to step 10:
If we divide 2600 by 406, we get 6 and a remainder of 164.
Put 6 as the next digit of the answer. 
Result so far: 238124.56
Subtracting 2436 from 2600 leaves us with 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Going ahead to step 11:
1640 divided by 406 is 4 with a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 238124.564
Subtract 1624 from 1640 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 12:
If we divide 160 by 406, we get 0 and a remainder of 160.
The next digit of our result is 0. 
Result so far: 238124.564
Deduct 0 from 160 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 13:
If we divide 1600 by 406, we get 3 and a remainder of 382.
The number 3 becomes the next digit in our result. 
Result so far: 238124.56403
If we subtract 1218 from 1600, we get 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

On to step 14:
3820 divided by 406 is 9 with a remainder of 166.
The next digit of our result is 9. 
Result so far: 238124.564039
If we subtract 3654 from 3820, we get 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Step 15:
406 goes into 1660 4 times with a remainder of 36.
The number 4 becomes the next digit in our result. 
Result so far: 238124.5640394
Subtracting 1624 from 1660 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 16:
406 can be fit into 360 0 times, resulting in a remainder of 360.
The number 0 becomes the next digit in our result. 
Result so far: 238124.5640394
If we take 0 away from 360, we end up with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

The final outcome is 238124.5640394, with a leftover of 3.6e-07.