53989155 ÷ 39 
The aim is to understand the frequency of 39 in 53989155.

Moving on to step 1:
If we divide 5 by 39, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (3) from the dividend, add it to 5, then carry on: 53 / 39

Advancing to step 2:
If we divide 53 by 39, we get 1 and a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 39 from 53 and we're left with 14.
Grab the next digit (9) from the dividend, add it to 14, then carry on: 149 / 39

Advancing to step 3:
When dividing 149 by 39, we get 3 with a remainder of 32.
The next digit of our result is 3. 
Result so far: 13.0
If we subtract 117 from 149, we get 32.
Include the next digit (8) from the dividend after 32, then repeat: 328 / 39

Let's proceed to step 4:
39 goes into 328 8 times with a remainder of 16.
The next digit of our result is 8. 
Result so far: 138.0
Deduct 312 from 328 and we're left with 16.
Fetch the next digit (9) from the dividend, attach it to 16 and continue: 169 / 39

Advancing to step 5:
39 can be fit into 169 4 times, resulting in a remainder of 13.
Record the quotient 4 as the next digit in the result. 
Result so far: 1384.0
If we take 156 away from 169, we end up with 13.
Include the next digit (1) from the dividend after 13, then repeat: 131 / 39

Going ahead to step 6:
39 goes into 131 3 times with a remainder of 14.
Use 3 as the next digit of our solution. 
Result so far: 13843.0
The remainder is 14 after subtracting 117 from 131.
Bring next digit (5) of the dividend behind the 14 and repeat the process: 145 / 39

Moving on to step 7:
39 goes into 145 3 times with a remainder of 28.
The number 3 becomes the next digit in our result. 
Result so far: 138433.0
If we subtract 117 from 145, we get 28.
Append the next digit (5) from the dividend to 28 and continue with: 285 / 39

Let's proceed to step 8:
If we divide 285 by 39, we get 7 and a remainder of 12.
Put 7 as the next digit of the answer. 
Result so far: 1384337.0
If we take 273 away from 285, we end up with 12.
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 9:
120 divided by 39 is 3 with a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 1384337.3
If we subtract 117 from 120, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 10:
If we divide 30 by 39, we get 0 and a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 1384337.3
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 11:
39 goes into 300 7 times with a remainder of 27.
The next digit of our result is 7. 
Result so far: 1384337.307
If we subtract 273 from 300, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 12:
When dividing 270 by 39, we get 6 with a remainder of 36.
Use 6 as the next digit of our solution. 
Result so far: 1384337.3076
If we take 234 away from 270, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 13:
If we divide 360 by 39, we get 9 and a remainder of 9.
The next digit of our result is 9. 
Result so far: 1384337.30769
If we subtract 351 from 360, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 14:
If we divide 90 by 39, we get 2 and a remainder of 12.
The number 2 becomes the next digit in our result. 
Result so far: 1384337.307692
The remainder is 12 after subtracting 78 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 15:
If we divide 120 by 39, we get 3 and a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 1384337.3076923
Subtracting 117 from 120 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 16:
The number 39 fits into 30 0 times, leaving a remainder of 30.
The next digit of our result is 0. 
Result so far: 1384337.3076923
Subtract 0 from 30 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.

The quotient of the division is 1384337.3076923, and the remainder is 3e-08.