3794983 ÷ 138 
The aim is to understand the frequency of 138 in 3794983.

Let's proceed to step 1:
If we divide 3 by 138, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (7) from the dividend, attach it to 3 and continue: 37 / 138

Advancing to step 2:
138 can be fit into 37 0 times, resulting in a remainder of 37.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 37 to get 37.
Take the next digit (9) from the dividend and append it to 37, then repeat: 379 / 138

Moving on to step 3:
If we divide 379 by 138, we get 2 and a remainder of 103.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 276 from 379 leaves us with 103.
Append the next digit (4) from the dividend to 103 and continue with: 1034 / 138

Let's proceed to step 4:
When dividing 1034 by 138, we get 7 with a remainder of 68.
Record the quotient 7 as the next digit in the result. 
Result so far: 27.0
If we subtract 966 from 1034, we get 68.
Fetch the next digit (9) from the dividend, attach it to 68 and continue: 689 / 138

Moving on to step 5:
When dividing 689 by 138, we get 4 with a remainder of 137.
Put 4 as the next digit of the answer. 
Result so far: 274.0
Subtract 552 from 689 to get 137.
Bring next digit (8) of the dividend behind the 137 and repeat the process: 1378 / 138

Advancing to step 6:
When dividing 1378 by 138, we get 9 with a remainder of 136.
The number 9 becomes the next digit in our result. 
Result so far: 2749.0
If we subtract 1242 from 1378, we get 136.
Bring next digit (3) of the dividend behind the 136 and repeat the process: 1363 / 138

On to step 7:
138 can be fit into 1363 9 times, resulting in a remainder of 121.
The next digit of our result is 9. 
Result so far: 27499.0
Deduct 1242 from 1363 and we're left with 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Step 8:
If we divide 1210 by 138, we get 8 and a remainder of 106.
The next digit of our result is 8. 
Result so far: 27499.8
If we take 1104 away from 1210, we end up with 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Advancing to step 9:
The number 138 fits into 1060 7 times, leaving a remainder of 94.
Write down 7 as next digit of the result. 
Result so far: 27499.87
The remainder is 94 after subtracting 966 from 1060.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Step 10:
The number 138 fits into 940 6 times, leaving a remainder of 112.
The number 6 becomes the next digit in our result. 
Result so far: 27499.876
Deduct 828 from 940 and we're left with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

On to step 11:
The number 138 fits into 1120 8 times, leaving a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 27499.8768
Subtract 1104 from 1120 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 12:
When dividing 160 by 138, we get 1 with a remainder of 22.
Write down 1 as next digit of the result. 
Result so far: 27499.87681
Subtracting 138 from 160 leaves us 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.

Advancing to step 13:
138 goes into 220 1 times with a remainder of 82.
Write down 1 as next digit of the result. 
Result so far: 27499.876811
If we subtract 138 from 220, we get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

The final result is 27499.876811 with a remainder of 8.2e-06.