We look at the division of 73889350 by 781 
The aim is to understand the frequency of 781 in 73889350.

Advancing to step 1:
781 goes into 7 0 times with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (3) from the dividend to 7 and continue with: 73 / 781

Let's proceed to step 2:
781 can be fit into 73 0 times, resulting in a remainder of 73.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 73 to get 73.
Grab the next digit (8) from the dividend, add it to 73, then carry on: 738 / 781

Step 3:
If we divide 738 by 781, we get 0 and a remainder of 738.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 738, we get 738.
Take the next digit (8) from the dividend and append it to 738, then repeat: 7388 / 781

Advancing to step 4:
When dividing 7388 by 781, we get 9 with a remainder of 359.
The next digit of our result is 9. 
Result so far: 9.0
If we take 7029 away from 7388, we end up with 359.
Take the next digit (9) from the dividend and append it to 359, then repeat: 3599 / 781

On to step 5:
If we divide 3599 by 781, we get 4 and a remainder of 475.
The number 4 becomes the next digit in our result. 
Result so far: 94.0
Deduct 3124 from 3599 and we're left with 475.
Grab the next digit (3) from the dividend, add it to 475, then carry on: 4753 / 781

Let's proceed to step 6:
4753 divided by 781 is 6 with a remainder of 67.
The next digit of our result is 6. 
Result so far: 946.0
The remainder is 67 after subtracting 4686 from 4753.
Include the next digit (5) from the dividend after 67, then repeat: 675 / 781

Going ahead to step 7:
The number 781 fits into 675 0 times, leaving a remainder of 675.
Write down 0 as next digit of the result. 
Result so far: 9460.0
The remainder is 675 after subtracting 0 from 675.
Include the next digit (0) from the dividend after 675, then repeat: 6750 / 781

Advancing to step 8:
6750 divided by 781 is 8 with a remainder of 502.
Use 8 as the next digit of our solution. 
Result so far: 94608.0
If we subtract 6248 from 6750, we get 502.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5020, and continue the process.

Advancing to step 9:
5020 divided by 781 is 6 with a remainder of 334.
Record the quotient 6 as the next digit in the result. 
Result so far: 94608.6
The remainder is 334 after subtracting 4686 from 5020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3340, and continue the process.

On to step 10:
781 goes into 3340 4 times with a remainder of 216.
The next digit of our result is 4. 
Result so far: 94608.64
The remainder is 216 after subtracting 3124 from 3340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Moving on to step 11:
The number 781 fits into 2160 2 times, leaving a remainder of 598.
Put 2 as the next digit of the answer. 
Result so far: 94608.642
Subtracting 1562 from 2160 leaves us with 598.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5980, and continue the process.

Step 12:
When dividing 5980 by 781, we get 7 with a remainder of 513.
The next digit of our result is 7. 
Result so far: 94608.6427
Deduct 5467 from 5980 and we're left with 513.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5130, and continue the process.

Advancing to step 13:
781 can be fit into 5130 6 times, resulting in a remainder of 444.
The next digit of our result is 6. 
Result so far: 94608.64276
Deduct 4686 from 5130 and we're left with 444.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

Let's proceed to step 14:
781 goes into 4440 5 times with a remainder of 535.
Write down 5 as next digit of the result. 
Result so far: 94608.642765
Subtracting 3905 from 4440 leaves us with 535.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5350, and continue the process.

Step 15:
When dividing 5350 by 781, we get 6 with a remainder of 664.
Record the quotient 6 as the next digit in the result. 
Result so far: 94608.6427656
The remainder is 664 after subtracting 4686 from 5350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6640, and continue the process.

Advancing to step 16:
If we divide 6640 by 781, we get 8 and a remainder of 392.
The next digit of our result is 8. 
Result so far: 94608.64276568
If we subtract 6248 from 6640, we get 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

The quotient of the division is 94608.64276568, and the remainder is 3.92e-07.