We divide 51405618 by 997
The aim is to understand the frequency of 997 in 51405618.

Let's proceed to step 1:
The number 997 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 997

Advancing to step 2:
51 divided by 997 is 0 with a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 51 after subtracting 0 from 51.
Grab the next digit (4) from the dividend, add it to 51, then carry on: 514 / 997

Step 3:
514 divided by 997 is 0 with a remainder of 514.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 514 to get 514.
Bring next digit (0) of the dividend behind the 514 and repeat the process: 5140 / 997

On to step 4:
997 goes into 5140 5 times with a remainder of 155.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we take 4985 away from 5140, we end up with 155.
Take the next digit (5) from the dividend and append it to 155, then repeat: 1555 / 997

Moving on to step 5:
997 can be fit into 1555 1 times, resulting in a remainder of 558.
Use 1 as the next digit of our solution. 
Result so far: 51.0
The remainder is 558 after subtracting 997 from 1555.
Grab the next digit (6) from the dividend, add it to 558, then carry on: 5586 / 997

Let's proceed to step 6:
997 can be fit into 5586 5 times, resulting in a remainder of 601.
The next digit of our result is 5. 
Result so far: 515.0
Subtract 4985 from 5586 to get 601.
Take the next digit (1) from the dividend and append it to 601, then repeat: 6011 / 997

Going ahead to step 7:
6011 divided by 997 is 6 with a remainder of 29.
The next digit of our result is 6. 
Result so far: 5156.0
Deduct 5982 from 6011 and we're left with 29.
Bring next digit (8) of the dividend behind the 29 and repeat the process: 298 / 997

Let's proceed to step 8:
997 goes into 298 0 times with a remainder of 298.
Record the quotient 0 as the next digit in the result. 
Result so far: 51560.0
The remainder is 298 after subtracting 0 from 298.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2980, and continue the process.

Advancing to step 9:
When dividing 2980 by 997, we get 2 with a remainder of 986.
Record the quotient 2 as the next digit in the result. 
Result so far: 51560.2
Deduct 1994 from 2980 and we're left with 986.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9860, and continue the process.

On to step 10:
9860 divided by 997 is 9 with a remainder of 887.
Write down 9 as next digit of the result. 
Result so far: 51560.29
Deduct 8973 from 9860 and we're left with 887.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8870, and continue the process.

Step 11:
997 can be fit into 8870 8 times, resulting in a remainder of 894.
Record the quotient 8 as the next digit in the result. 
Result so far: 51560.298
Deduct 7976 from 8870 and we're left with 894.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8940, and continue the process.

Moving on to step 12:
997 goes into 8940 8 times with a remainder of 964.
The number 8 becomes the next digit in our result. 
Result so far: 51560.2988
If we subtract 7976 from 8940, we get 964.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9640, and continue the process.

After the division, we end up with 51560.2988 and a remainder of 0.00964.