We divide 78689174 by 407
The aim is to understand the frequency of 407 in 78689174.

Moving on to step 1:
When dividing 7 by 407, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 407

Moving on to step 2:
When dividing 78 by 407, we get 0 with a remainder of 78.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 78, we get 78.
Grab the next digit (6) from the dividend, add it to 78, then carry on: 786 / 407

Let's proceed to step 3:
407 goes into 786 1 times with a remainder of 379.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 407 from 786 and we're left with 379.
Include the next digit (8) from the dividend after 379, then repeat: 3798 / 407

Advancing to step 4:
407 can be fit into 3798 9 times, resulting in a remainder of 135.
The next digit of our result is 9. 
Result so far: 19.0
If we take 3663 away from 3798, we end up with 135.
Grab the next digit (9) from the dividend, add it to 135, then carry on: 1359 / 407

Step 5:
When dividing 1359 by 407, we get 3 with a remainder of 138.
Put 3 as the next digit of the answer. 
Result so far: 193.0
The remainder is 138 after subtracting 1221 from 1359.
Fetch the next digit (1) from the dividend, attach it to 138 and continue: 1381 / 407

Step 6:
407 goes into 1381 3 times with a remainder of 160.
Write down 3 as next digit of the result. 
Result so far: 1933.0
Subtract 1221 from 1381 to get 160.
Take the next digit (7) from the dividend and append it to 160, then repeat: 1607 / 407

Going ahead to step 7:
407 goes into 1607 3 times with a remainder of 386.
Write down 3 as next digit of the result. 
Result so far: 19333.0
Subtract 1221 from 1607 to get 386.
Take the next digit (4) from the dividend and append it to 386, then repeat: 3864 / 407

Moving on to step 8:
407 can be fit into 3864 9 times, resulting in a remainder of 201.
Write down 9 as next digit of the result. 
Result so far: 193339.0
Subtract 3663 from 3864 to get 201.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2010, and continue the process.

Let's proceed to step 9:
407 can be fit into 2010 4 times, resulting in a remainder of 382.
The next digit of our result is 4. 
Result so far: 193339.4
If we subtract 1628 from 2010, we get 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

Step 10:
When dividing 3820 by 407, we get 9 with a remainder of 157.
Put 9 as the next digit of the answer. 
Result so far: 193339.49
The remainder is 157 after subtracting 3663 from 3820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

On to step 11:
When dividing 1570 by 407, we get 3 with a remainder of 349.
Record the quotient 3 as the next digit in the result. 
Result so far: 193339.493
The remainder is 349 after subtracting 1221 from 1570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3490, and continue the process.

On to step 12:
The number 407 fits into 3490 8 times, leaving a remainder of 234.
Use 8 as the next digit of our solution. 
Result so far: 193339.4938
Subtract 3256 from 3490 to get 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

On to step 13:
407 goes into 2340 5 times with a remainder of 305.
Write down 5 as next digit of the result. 
Result so far: 193339.49385
Subtract 2035 from 2340 to get 305.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3050, and continue the process.

Moving on to step 14:
407 goes into 3050 7 times with a remainder of 201.
Write down 7 as next digit of the result. 
Result so far: 193339.493857
Deduct 2849 from 3050 and we're left with 201.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2010, and continue the process.

Step 15:
407 goes into 2010 4 times with a remainder of 382.
The next digit of our result is 4. 
Result so far: 193339.4938574
Deduct 1628 from 2010 and we're left with 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

Advancing to step 16:
When dividing 3820 by 407, we get 9 with a remainder of 157.
The next digit of our result is 9. 
Result so far: 193339.49385749
Deduct 3663 from 3820 and we're left with 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

The final result is 193339.49385749 with a remainder of 1.57e-07.