Let's divide 90151214 by 139
The aim is to understand the frequency of 139 in 90151214.

Moving on to step 1:
9 divided by 139 is 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 139

Going ahead to step 2:
139 goes into 90 0 times with a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 90, we get 90.
Include the next digit (1) from the dividend after 90, then repeat: 901 / 139

Let's proceed to step 3:
The number 139 fits into 901 6 times, leaving a remainder of 67.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we subtract 834 from 901, we get 67.
Grab the next digit (5) from the dividend, add it to 67, then carry on: 675 / 139

Advancing to step 4:
If we divide 675 by 139, we get 4 and a remainder of 119.
The next digit of our result is 4. 
Result so far: 64.0
If we subtract 556 from 675, we get 119.
Include the next digit (1) from the dividend after 119, then repeat: 1191 / 139

Step 5:
139 goes into 1191 8 times with a remainder of 79.
Use 8 as the next digit of our solution. 
Result so far: 648.0
If we subtract 1112 from 1191, we get 79.
Bring next digit (2) of the dividend behind the 79 and repeat the process: 792 / 139

Let's proceed to step 6:
139 goes into 792 5 times with a remainder of 97.
Write down 5 as next digit of the result. 
Result so far: 6485.0
Deduct 695 from 792 and we're left with 97.
Bring next digit (1) of the dividend behind the 97 and repeat the process: 971 / 139

Step 7:
When dividing 971 by 139, we get 6 with a remainder of 137.
Put 6 as the next digit of the answer. 
Result so far: 64856.0
Deduct 834 from 971 and we're left with 137.
Take the next digit (4) from the dividend and append it to 137, then repeat: 1374 / 139

Going ahead to step 8:
139 can be fit into 1374 9 times, resulting in a remainder of 123.
Use 9 as the next digit of our solution. 
Result so far: 648569.0
Deduct 1251 from 1374 and we're left with 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Going ahead to step 9:
139 can be fit into 1230 8 times, resulting in a remainder of 118.
The number 8 becomes the next digit in our result. 
Result so far: 648569.8
The remainder is 118 after subtracting 1112 from 1230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Let's proceed to step 10:
1180 divided by 139 is 8 with a remainder of 68.
Record the quotient 8 as the next digit in the result. 
Result so far: 648569.88
Deduct 1112 from 1180 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

The final result is 648569.88 with a remainder of 0.068.