51400511 ÷ 988 
The aim is to understand the frequency of 988 in 51400511.

Moving on to step 1:
988 can be fit into 5 0 times, resulting in a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 988

Step 2:
If we divide 51 by 988, we get 0 and a remainder of 51.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Bring next digit (4) of the dividend behind the 51 and repeat the process: 514 / 988

Let's proceed to step 3:
When dividing 514 by 988, we get 0 with a remainder of 514.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 514, we end up with 514.
Take the next digit (0) from the dividend and append it to 514, then repeat: 5140 / 988

On to step 4:
988 can be fit into 5140 5 times, resulting in a remainder of 200.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtracting 4940 from 5140 leaves us with 200.
Append the next digit (0) from the dividend to 200 and continue with: 2000 / 988

Advancing to step 5:
The number 988 fits into 2000 2 times, leaving a remainder of 24.
Record the quotient 2 as the next digit in the result. 
Result so far: 52.0
If we subtract 1976 from 2000, we get 24.
Grab the next digit (5) from the dividend, add it to 24, then carry on: 245 / 988

On to step 6:
If we divide 245 by 988, we get 0 and a remainder of 245.
The next digit of our result is 0. 
Result so far: 520.0
Subtract 0 from 245 to get 245.
Fetch the next digit (1) from the dividend, attach it to 245 and continue: 2451 / 988

Step 7:
2451 divided by 988 is 2 with a remainder of 475.
Put 2 as the next digit of the answer. 
Result so far: 5202.0
Subtract 1976 from 2451 to get 475.
Take the next digit (1) from the dividend and append it to 475, then repeat: 4751 / 988

Let's proceed to step 8:
988 goes into 4751 4 times with a remainder of 799.
Use 4 as the next digit of our solution. 
Result so far: 52024.0
Subtract 3952 from 4751 to get 799.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7990, and continue the process.

Going ahead to step 9:
When dividing 7990 by 988, we get 8 with a remainder of 86.
The next digit of our result is 8. 
Result so far: 52024.8
If we subtract 7904 from 7990, we get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Let's proceed to step 10:
860 divided by 988 is 0 with a remainder of 860.
The next digit of our result is 0. 
Result so far: 52024.8
Subtracting 0 from 860 leaves us with 860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8600, and continue the process.

Step 11:
8600 divided by 988 is 8 with a remainder of 696.
The next digit of our result is 8. 
Result so far: 52024.808
The remainder is 696 after subtracting 7904 from 8600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6960, and continue the process.

On to step 12:
988 can be fit into 6960 7 times, resulting in a remainder of 44.
The next digit of our result is 7. 
Result so far: 52024.8087
If we subtract 6916 from 6960, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 13:
When dividing 440 by 988, we get 0 with a remainder of 440.
Put 0 as the next digit of the answer. 
Result so far: 52024.8087
If we take 0 away from 440, we end up with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Step 14:
The number 988 fits into 4400 4 times, leaving a remainder of 448.
Use 4 as the next digit of our solution. 
Result so far: 52024.808704
Subtract 3952 from 4400 to get 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Advancing to step 15:
4480 divided by 988 is 4 with a remainder of 528.
Write down 4 as next digit of the result. 
Result so far: 52024.8087044
Subtract 3952 from 4480 to get 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

After the division, we end up with 52024.8087044 and a remainder of 5.28e-06.