Let's divide 12978188 by 214
The aim is to understand the frequency of 214 in 12978188.

Advancing to step 1:
If we divide 1 by 214, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 214

Moving on to step 2:
When dividing 12 by 214, we get 0 with a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Bring next digit (9) of the dividend behind the 12 and repeat the process: 129 / 214

Let's proceed to step 3:
214 can be fit into 129 0 times, resulting in a remainder of 129.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 129 and we're left with 129.
Include the next digit (7) from the dividend after 129, then repeat: 1297 / 214

Advancing to step 4:
1297 divided by 214 is 6 with a remainder of 13.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
The remainder is 13 after subtracting 1284 from 1297.
Fetch the next digit (8) from the dividend, attach it to 13 and continue: 138 / 214

Going ahead to step 5:
214 goes into 138 0 times with a remainder of 138.
Record the quotient 0 as the next digit in the result. 
Result so far: 60.0
The remainder is 138 after subtracting 0 from 138.
Fetch the next digit (1) from the dividend, attach it to 138 and continue: 1381 / 214

Advancing to step 6:
If we divide 1381 by 214, we get 6 and a remainder of 97.
Use 6 as the next digit of our solution. 
Result so far: 606.0
Subtract 1284 from 1381 to get 97.
Bring next digit (8) of the dividend behind the 97 and repeat the process: 978 / 214

On to step 7:
If we divide 978 by 214, we get 4 and a remainder of 122.
Record the quotient 4 as the next digit in the result. 
Result so far: 6064.0
Deduct 856 from 978 and we're left with 122.
Include the next digit (8) from the dividend after 122, then repeat: 1228 / 214

Advancing to step 8:
The number 214 fits into 1228 5 times, leaving a remainder of 158.
Record the quotient 5 as the next digit in the result. 
Result so far: 60645.0
Deduct 1070 from 1228 and we're left with 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Advancing to step 9:
The number 214 fits into 1580 7 times, leaving a remainder of 82.
Use 7 as the next digit of our solution. 
Result so far: 60645.7
Subtracting 1498 from 1580 leaves us with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Moving on to step 10:
When dividing 820 by 214, we get 3 with a remainder of 178.
Record the quotient 3 as the next digit in the result. 
Result so far: 60645.73
The remainder is 178 after subtracting 642 from 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Moving on to step 11:
1780 divided by 214 is 8 with a remainder of 68.
The number 8 becomes the next digit in our result. 
Result so far: 60645.738
Subtract 1712 from 1780 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 12:
680 divided by 214 is 3 with a remainder of 38.
The number 3 becomes the next digit in our result. 
Result so far: 60645.7383
Subtract 642 from 680 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 13:
When dividing 380 by 214, we get 1 with a remainder of 166.
Record the quotient 1 as the next digit in the result. 
Result so far: 60645.73831
The remainder is 166 after subtracting 214 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Going ahead to step 14:
214 goes into 1660 7 times with a remainder of 162.
The number 7 becomes the next digit in our result. 
Result so far: 60645.738317
Subtract 1498 from 1660 to get 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Let's proceed to step 15:
214 goes into 1620 7 times with a remainder of 122.
The number 7 becomes the next digit in our result. 
Result so far: 60645.7383177
Subtracting 1498 from 1620 leaves us with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

The final outcome is 60645.7383177, with a leftover of 1.22e-06.