We divide 42406921 by 410
The aim is to understand the frequency of 410 in 42406921.

Going ahead to step 1:
410 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 410

Advancing to step 2:
The number 410 fits into 42 0 times, leaving a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Fetch the next digit (4) from the dividend, attach it to 42 and continue: 424 / 410

On to step 3:
When dividing 424 by 410, we get 1 with a remainder of 14.
The next digit of our result is 1. 
Result so far: 1.0
If we take 410 away from 424, we end up with 14.
Append the next digit (0) from the dividend to 14 and continue with: 140 / 410

On to step 4:
The number 410 fits into 140 0 times, leaving a remainder of 140.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtract 0 from 140 to get 140.
Take the next digit (6) from the dividend and append it to 140, then repeat: 1406 / 410

Moving on to step 5:
If we divide 1406 by 410, we get 3 and a remainder of 176.
Write down 3 as next digit of the result. 
Result so far: 103.0
If we take 1230 away from 1406, we end up with 176.
Take the next digit (9) from the dividend and append it to 176, then repeat: 1769 / 410

Let's proceed to step 6:
1769 divided by 410 is 4 with a remainder of 129.
Use 4 as the next digit of our solution. 
Result so far: 1034.0
Subtract 1640 from 1769 to get 129.
Fetch the next digit (2) from the dividend, attach it to 129 and continue: 1292 / 410

Step 7:
If we divide 1292 by 410, we get 3 and a remainder of 62.
Put 3 as the next digit of the answer. 
Result so far: 10343.0
If we take 1230 away from 1292, we end up with 62.
Take the next digit (1) from the dividend and append it to 62, then repeat: 621 / 410

Going ahead to step 8:
410 goes into 621 1 times with a remainder of 211.
The number 1 becomes the next digit in our result. 
Result so far: 103431.0
Deduct 410 from 621 and we're left with 211.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2110, and continue the process.

Step 9:
When dividing 2110 by 410, we get 5 with a remainder of 60.
Record the quotient 5 as the next digit in the result. 
Result so far: 103431.5
If we subtract 2050 from 2110, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 10:
When dividing 600 by 410, we get 1 with a remainder of 190.
Use 1 as the next digit of our solution. 
Result so far: 103431.51
Subtract 410 from 600 to 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.

Let's proceed to step 11:
410 goes into 1900 4 times with a remainder of 260.
Use 4 as the next digit of our solution. 
Result so far: 103431.514
If we take 1640 away from 1900, we end up 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.

On to step 12:
2600 divided by 410 is 6 with a remainder of 140.
Use 6 as the next digit of our solution. 
Result so far: 103431.5146
If we subtract 2460 from 2600, we get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

On to step 13:
If we divide 1400 by 410, we get 3 and a remainder of 170.
Write down 3 as next digit of the result. 
Result so far: 103431.51463
Subtract 1230 from 1400 to get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Advancing to step 14:
1700 divided by 410 is 4 with a remainder of 60.
The next digit of our result is 4. 
Result so far: 103431.514634
The remainder is 60 after subtracting 1640 from 1700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 15:
The number 410 fits into 600 1 times, leaving a remainder of 190.
Record the quotient 1 as the next digit in the result. 
Result so far: 103431.5146341
The remainder is 190 after subtracting 410 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

On to step 16:
When dividing 1900 by 410, we get 4 with a remainder of 260.
The next digit of our result is 4. 
Result so far: 103431.51463414
Deduct 1640 from 1900 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.

The final result is 103431.51463414 with a remainder of 2.6e-07.