61350418 divided by 406 
The aim is to understand the frequency of 406 in 61350418.

Let's proceed to step 1:
406 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 406

On to step 2:
61 divided by 406 is 0 with a remainder of 61.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 61 after subtracting 0 from 61.
Bring next digit (3) of the dividend behind the 61 and repeat the process: 613 / 406

Advancing to step 3:
406 can be fit into 613 1 times, resulting in a remainder of 207.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 406 away from 613, we end up with 207.
Append the next digit (5) from the dividend to 207 and continue with: 2075 / 406

Moving on to step 4:
406 goes into 2075 5 times with a remainder of 45.
The next digit of our result is 5. 
Result so far: 15.0
If we subtract 2030 from 2075, we get 45.
Include the next digit (0) from the dividend after 45, then repeat: 450 / 406

Going ahead to step 5:
406 can be fit into 450 1 times, resulting in a remainder of 44.
Put 1 as the next digit of the answer. 
Result so far: 151.0
Subtracting 406 from 450 leaves us with 44.
Bring next digit (4) of the dividend behind the 44 and repeat the process: 444 / 406

On to step 6:
The number 406 fits into 444 1 times, leaving a remainder of 38.
Use 1 as the next digit of our solution. 
Result so far: 1511.0
If we take 406 away from 444, we end up with 38.
Bring next digit (1) of the dividend behind the 38 and repeat the process: 381 / 406

Advancing to step 7:
If we divide 381 by 406, we get 0 and a remainder of 381.
Record the quotient 0 as the next digit in the result. 
Result so far: 15110.0
If we take 0 away from 381, we end up with 381.
Grab the next digit (8) from the dividend, add it to 381, then carry on: 3818 / 406

Step 8:
When dividing 3818 by 406, we get 9 with a remainder of 164.
The number 9 becomes the next digit in our result. 
Result so far: 151109.0
If we subtract 3654 from 3818, we get 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Let's proceed to step 9:
406 goes into 1640 4 times with a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 151109.4
If we subtract 1624 from 1640, we 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.

Going ahead to step 10:
406 can be fit into 160 0 times, resulting in a remainder of 160.
The number 0 becomes the next digit in our result. 
Result so far: 151109.4
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.

Step 11:
1600 divided by 406 is 3 with a remainder of 382.
Record the quotient 3 as the next digit in the result. 
Result so far: 151109.403
Subtracting 1218 from 1600 leaves us with 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

Step 12:
When dividing 3820 by 406, we get 9 with a remainder of 166.
Use 9 as the next digit of our solution. 
Result so far: 151109.4039
Deduct 3654 from 3820 and we're left with 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 13:
406 can be fit into 1660 4 times, resulting in a remainder of 36.
The next digit of our result is 4. 
Result so far: 151109.40394
The remainder is 36 after subtracting 1624 from 1660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 14:
If we divide 360 by 406, we get 0 and a remainder of 360.
The number 0 becomes the next digit in our result. 
Result so far: 151109.40394
If we subtract 0 from 360, we get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Moving on to step 15:
The number 406 fits into 3600 8 times, leaving a remainder of 352.
Use 8 as the next digit of our solution. 
Result so far: 151109.4039408
Subtract 3248 from 3600 to 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.

Step 16:
406 goes into 3520 8 times with a remainder of 272.
Use 8 as the next digit of our solution. 
Result so far: 151109.40394088
The remainder is 272 after subtracting 3248 from 3520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

After the division, we end up with 151109.40394088 and a remainder of 2.72e-07.