We look at the division of 70485246 by 578 
The aim is to understand the frequency of 578 in 70485246.

Step 1:
578 can be fit into 7 0 times, resulting in a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Fetch the next digit (0) from the dividend, attach it to 7 and continue: 70 / 578

Let's proceed to step 2:
When dividing 70 by 578, we get 0 with a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 70 and we're left with 70.
Fetch the next digit (4) from the dividend, attach it to 70 and continue: 704 / 578

Let's proceed to step 3:
When dividing 704 by 578, we get 1 with a remainder of 126.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 578 from 704 and we're left with 126.
Grab the next digit (8) from the dividend, add it to 126, then carry on: 1268 / 578

Let's proceed to step 4:
1268 divided by 578 is 2 with a remainder of 112.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtract 1156 from 1268 to get 112.
Append the next digit (5) from the dividend to 112 and continue with: 1125 / 578

Advancing to step 5:
The number 578 fits into 1125 1 times, leaving a remainder of 547.
Record the quotient 1 as the next digit in the result. 
Result so far: 121.0
Deduct 578 from 1125 and we're left with 547.
Fetch the next digit (2) from the dividend, attach it to 547 and continue: 5472 / 578

Step 6:
578 goes into 5472 9 times with a remainder of 270.
Use 9 as the next digit of our solution. 
Result so far: 1219.0
The remainder is 270 after subtracting 5202 from 5472.
Grab the next digit (4) from the dividend, add it to 270, then carry on: 2704 / 578

Going ahead to step 7:
578 can be fit into 2704 4 times, resulting in a remainder of 392.
The number 4 becomes the next digit in our result. 
Result so far: 12194.0
Subtracting 2312 from 2704 leaves us with 392.
Take the next digit (6) from the dividend and append it to 392, then repeat: 3926 / 578

Going ahead to step 8:
3926 divided by 578 is 6 with a remainder of 458.
Record the quotient 6 as the next digit in the result. 
Result so far: 121946.0
Deduct 3468 from 3926 and we're left with 458.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

Step 9:
When dividing 4580 by 578, we get 7 with a remainder of 534.
The number 7 becomes the next digit in our result. 
Result so far: 121946.7
Deduct 4046 from 4580 and we're left with 534.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5340, and continue the process.

Moving on to step 10:
5340 divided by 578 is 9 with a remainder of 138.
Write down 9 as next digit of the result. 
Result so far: 121946.79
The remainder is 138 after subtracting 5202 from 5340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

Let's proceed to step 11:
1380 divided by 578 is 2 with a remainder of 224.
Put 2 as the next digit of the answer. 
Result so far: 121946.792
If we take 1156 away from 1380, we end up with 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Step 12:
The number 578 fits into 2240 3 times, leaving a remainder of 506.
The next digit of our result is 3. 
Result so far: 121946.7923
The remainder is 506 after subtracting 1734 from 2240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5060, and continue the process.

Let's proceed to step 13:
578 goes into 5060 8 times with a remainder of 436.
Use 8 as the next digit of our solution. 
Result so far: 121946.79238
If we take 4624 away from 5060, we end up with 436.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4360, and continue the process.

Step 14:
The number 578 fits into 4360 7 times, leaving a remainder of 314.
The number 7 becomes the next digit in our result. 
Result so far: 121946.792387
If we take 4046 away from 4360, we end up with 314.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

Going ahead to step 15:
The number 578 fits into 3140 5 times, leaving a remainder of 250.
Record the quotient 5 as the next digit in the result. 
Result so far: 121946.7923875
Subtracting 2890 from 3140 leaves us with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Let's proceed to step 16:
578 can be fit into 2500 4 times, resulting in a remainder of 188.
Record the quotient 4 as the next digit in the result. 
Result so far: 121946.79238754
Subtracting 2312 from 2500 leaves us with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

The final outcome is 121946.79238754, with a leftover of 1.88e-07.