78570289 ÷ 443 
The aim is to understand the frequency of 443 in 78570289.

Step 1:
The number 443 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 443

Advancing to step 2:
When dividing 78 by 443, we get 0 with a remainder of 78.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Fetch the next digit (5) from the dividend, attach it to 78 and continue: 785 / 443

On to step 3:
443 can be fit into 785 1 times, resulting in a remainder of 342.
The next digit of our result is 1. 
Result so far: 1.0
If we take 443 away from 785, we end up with 342.
Fetch the next digit (7) from the dividend, attach it to 342 and continue: 3427 / 443

On to step 4:
If we divide 3427 by 443, we get 7 and a remainder of 326.
The next digit of our result is 7. 
Result so far: 17.0
Subtracting 3101 from 3427 leaves us with 326.
Fetch the next digit (0) from the dividend, attach it to 326 and continue: 3260 / 443

Going ahead to step 5:
443 goes into 3260 7 times with a remainder of 159.
Put 7 as the next digit of the answer. 
Result so far: 177.0
If we take 3101 away from 3260, we end up with 159.
Grab the next digit (2) from the dividend, add it to 159, then carry on: 1592 / 443

On to step 6:
When dividing 1592 by 443, we get 3 with a remainder of 263.
The number 3 becomes the next digit in our result. 
Result so far: 1773.0
Deduct 1329 from 1592 and we're left with 263.
Append the next digit (8) from the dividend to 263 and continue with: 2638 / 443

On to step 7:
The number 443 fits into 2638 5 times, leaving a remainder of 423.
The number 5 becomes the next digit in our result. 
Result so far: 17735.0
Subtract 2215 from 2638 to get 423.
Append the next digit (9) from the dividend to 423 and continue with: 4239 / 443

Moving on to step 8:
443 can be fit into 4239 9 times, resulting in a remainder of 252.
Use 9 as the next digit of our solution. 
Result so far: 177359.0
Deduct 3987 from 4239 and we're left with 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Step 9:
443 can be fit into 2520 5 times, resulting in a remainder of 305.
Write down 5 as next digit of the result. 
Result so far: 177359.5
Subtracting 2215 from 2520 leaves us with 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 10:
3050 divided by 443 is 6 with a remainder of 392.
Put 6 as the next digit of the answer. 
Result so far: 177359.56
Subtract 2658 from 3050 to 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.

Advancing to step 11:
The number 443 fits into 3920 8 times, leaving a remainder of 376.
The next digit of our result is 8. 
Result so far: 177359.568
Deduct 3544 from 3920 and we're left 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.

Step 12:
When dividing 3760 by 443, we get 8 with a remainder of 216.
Write down 8 as next digit of the result. 
Result so far: 177359.5688
Subtract 3544 from 3760 to get 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

The final outcome is 177359.5688, with a leftover of 0.00216.