We're dividing 71296686 by 438 
The aim is to understand the frequency of 438 in 71296686.

Moving on to step 1:
7 divided by 438 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 438

Step 2:
The number 438 fits into 71 0 times, leaving a remainder of 71.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 71 after subtracting 0 from 71.
Grab the next digit (2) from the dividend, add it to 71, then carry on: 712 / 438

Let's proceed to step 3:
712 divided by 438 is 1 with a remainder of 274.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 438 away from 712, we end up with 274.
Include the next digit (9) from the dividend after 274, then repeat: 2749 / 438

Moving on to step 4:
2749 divided by 438 is 6 with a remainder of 121.
Put 6 as the next digit of the answer. 
Result so far: 16.0
The remainder is 121 after subtracting 2628 from 2749.
Include the next digit (6) from the dividend after 121, then repeat: 1216 / 438

Let's proceed to step 5:
If we divide 1216 by 438, we get 2 and a remainder of 340.
Record the quotient 2 as the next digit in the result. 
Result so far: 162.0
If we subtract 876 from 1216, we get 340.
Include the next digit (6) from the dividend after 340, then repeat: 3406 / 438

On to step 6:
When dividing 3406 by 438, we get 7 with a remainder of 340.
Put 7 as the next digit of the answer. 
Result so far: 1627.0
Subtract 3066 from 3406 to get 340.
Grab the next digit (8) from the dividend, add it to 340, then carry on: 3408 / 438

Advancing to step 7:
438 goes into 3408 7 times with a remainder of 342.
Use 7 as the next digit of our solution. 
Result so far: 16277.0
Subtracting 3066 from 3408 leaves us with 342.
Grab the next digit (6) from the dividend, add it to 342, then carry on: 3426 / 438

Step 8:
When dividing 3426 by 438, we get 7 with a remainder of 360.
Use 7 as the next digit of our solution. 
Result so far: 162777.0
If we subtract 3066 from 3426, we get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Step 9:
The number 438 fits into 3600 8 times, leaving a remainder of 96.
The next digit of our result is 8. 
Result so far: 162777.8
If we take 3504 away from 3600, we end up with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Step 10:
438 can be fit into 960 2 times, resulting in a remainder of 84.
Put 2 as the next digit of the answer. 
Result so far: 162777.82
If we subtract 876 from 960, we get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

On to step 11:
If we divide 840 by 438, we get 1 and a remainder of 402.
Put 1 as the next digit of the answer. 
Result so far: 162777.821
If we take 438 away from 840, we end up with 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Advancing to step 12:
438 can be fit into 4020 9 times, resulting in a remainder of 78.
Record the quotient 9 as the next digit in the result. 
Result so far: 162777.8219
Subtract 3942 from 4020 to get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 13:
438 goes into 780 1 times with a remainder of 342.
Use 1 as the next digit of our solution. 
Result so far: 162777.82191
If we take 438 away from 780, we end up with 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

Step 14:
The number 438 fits into 3420 7 times, leaving a remainder of 354.
Put 7 as the next digit of the answer. 
Result so far: 162777.821917
Deduct 3066 from 3420 and we're left with 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Going ahead to step 15:
3540 divided by 438 is 8 with a remainder of 36.
Write down 8 as next digit of the result. 
Result so far: 162777.8219178
If we take 3504 away from 3540, 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.

Going ahead to step 16:
438 goes into 360 0 times with a remainder of 360.
Record the quotient 0 as the next digit in the result. 
Result so far: 162777.8219178
Deduct 0 from 360 and we're left with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

After the division, we end up with 162777.8219178 and a remainder of 3.6e-07.