721261 divided by 49 
The aim is to understand the frequency of 49 in 721261.

Step 1:
49 goes into 7 0 times with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Grab the next digit (2) from the dividend, add it to 7, then carry on: 72 / 49

Let's proceed to step 2:
When dividing 72 by 49, we get 1 with a remainder of 23.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 49 from 72 and we're left with 23.
Bring next digit (1) of the dividend behind the 23 and repeat the process: 231 / 49

Step 3:
49 can be fit into 231 4 times, resulting in a remainder of 35.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
If we take 196 away from 231, we end up with 35.
Grab the next digit (2) from the dividend, add it to 35, then carry on: 352 / 49

Moving on to step 4:
If we divide 352 by 49, we get 7 and a remainder of 9.
Use 7 as the next digit of our solution. 
Result so far: 147.0
Deduct 343 from 352 and we're left with 9.
Bring next digit (6) of the dividend behind the 9 and repeat the process: 96 / 49

Let's proceed to step 5:
The number 49 fits into 96 1 times, leaving a remainder of 47.
Use 1 as the next digit of our solution. 
Result so far: 1471.0
Subtracting 49 from 96 leaves us with 47.
Append the next digit (1) from the dividend to 47 and continue with: 471 / 49

On to step 6:
When dividing 471 by 49, we get 9 with a remainder of 30.
Use 9 as the next digit of our solution. 
Result so far: 14719.0
Subtract 441 from 471 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 7:
When dividing 300 by 49, we get 6 with a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 14719.6
The remainder is 6 after subtracting 294 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 8:
60 divided by 49 is 1 with a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 14719.61
Subtracting 49 from 60 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 9:
When dividing 110 by 49, we get 2 with a remainder of 12.
Write down 2 as next digit of the result. 
Result so far: 14719.612
The remainder is 12 after subtracting 98 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 10:
49 can be fit into 120 2 times, resulting in a remainder of 22.
Use 2 as the next digit of our solution. 
Result so far: 14719.6122
Deduct 98 from 120 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The final outcome is 14719.6122, with a leftover of 0.00022.