We divide 91887200 by 781
The aim is to understand the frequency of 781 in 91887200.

On to step 1:
If we divide 9 by 781, we get 0 and a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 781

Advancing to step 2:
The number 781 fits into 91 0 times, leaving a remainder of 91.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 91 to get 91.
Grab the next digit (8) from the dividend, add it to 91, then carry on: 918 / 781

On to step 3:
918 divided by 781 is 1 with a remainder of 137.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 781 from 918 and we're left with 137.
Fetch the next digit (8) from the dividend, attach it to 137 and continue: 1378 / 781

Let's proceed to step 4:
781 can be fit into 1378 1 times, resulting in a remainder of 597.
The next digit of our result is 1. 
Result so far: 11.0
Deduct 781 from 1378 and we're left with 597.
Take the next digit (7) from the dividend and append it to 597, then repeat: 5977 / 781

On to step 5:
If we divide 5977 by 781, we get 7 and a remainder of 510.
Use 7 as the next digit of our solution. 
Result so far: 117.0
The remainder is 510 after subtracting 5467 from 5977.
Append the next digit (2) from the dividend to 510 and continue with: 5102 / 781

Advancing to step 6:
If we divide 5102 by 781, we get 6 and a remainder of 416.
Use 6 as the next digit of our solution. 
Result so far: 1176.0
Subtracting 4686 from 5102 leaves us with 416.
Take the next digit (0) from the dividend and append it to 416, then repeat: 4160 / 781

Going ahead to step 7:
If we divide 4160 by 781, we get 5 and a remainder of 255.
Use 5 as the next digit of our solution. 
Result so far: 11765.0
If we subtract 3905 from 4160, we get 255.
Take the next digit (0) from the dividend and append it to 255, then repeat: 2550 / 781

Going ahead to step 8:
781 can be fit into 2550 3 times, resulting in a remainder of 207.
The number 3 becomes the next digit in our result. 
Result so far: 117653.0
Deduct 2343 from 2550 and we're left with 207.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2070, and continue the process.

Moving on to step 9:
The number 781 fits into 2070 2 times, leaving a remainder of 508.
The next digit of our result is 2. 
Result so far: 117653.2
Deduct 1562 from 2070 and we're left with 508.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5080, and continue the process.

Let's proceed to step 10:
When dividing 5080 by 781, we get 6 with a remainder of 394.
Record the quotient 6 as the next digit in the result. 
Result so far: 117653.26
The remainder is 394 after subtracting 4686 from 5080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Advancing to step 11:
The number 781 fits into 3940 5 times, leaving a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 117653.265
If we subtract 3905 from 3940, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 12:
The number 781 fits into 350 0 times, leaving a remainder of 350.
Use 0 as the next digit of our solution. 
Result so far: 117653.265
If we take 0 away from 350, we end up with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Moving on to step 13:
The number 781 fits into 3500 4 times, leaving a remainder of 376.
Use 4 as the next digit of our solution. 
Result so far: 117653.26504
If we take 3124 away from 3500, we end up with 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

Advancing to step 14:
781 goes into 3760 4 times with a remainder of 636.
The number 4 becomes the next digit in our result. 
Result so far: 117653.265044
If we take 3124 away from 3760, we end up with 636.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6360, and continue the process.

The final outcome is 117653.265044, with a leftover of 6.36e-05.